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103212021312013 = 31271401206314851
BaseRepresentation
bin10111011101111011101011…
…110111011110101000001101
3111112102222021020002102011111
4113131323223313132220031
5102012011204423441023
61003302540434452021
730511552050622255
oct2735735367365015
9445388236072144
10103212021312013
112a982a77331759
12b6ab221134011
134578b0c67c193
141b6b6ba594965
15bdebaca1800d
hex5ddeebddea0d

103212021312013 has 32 divisors (see below), whose sum is σ = 107260438708224. Its totient is φ = 99211068000000.

The previous prime is 103212021311969. The next prime is 103212021312089. The reversal of 103212021312013 is 310213120212301.

It is a cyclic number.

It is not a de Polignac number, because 103212021312013 - 233 = 103203431377421 is a prime.

It is a super-2 number, since 2×1032120213120132 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103212021312313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6949829038 + ... + 6949843888.

It is an arithmetic number, because the mean of its divisors is an integer number (3351888709632).

Almost surely, 2103212021312013 is an apocalyptic number.

It is an amenable number.

103212021312013 is a deficient number, since it is larger than the sum of its proper divisors (4048417396211).

103212021312013 is a wasteful number, since it uses less digits than its factorization.

103212021312013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17617.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 103212021312013 its reverse (310213120212301), we get a palindrome (413425141524314).

The spelling of 103212021312013 in words is "one hundred three trillion, two hundred twelve billion, twenty-one million, three hundred twelve thousand, thirteen".

Divisors: 1 31 271 401 2063 8401 12431 14851 63953 108671 460381 559073 827263 3368801 4024621 5955251 17331263 25645153 30637613 124763251 184612781 224188273 949766003 1613873021 6949836463 8302793123 12285682813 50030063651 257386586813 380856167203 3329420042323 103212021312013