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101103102021 = 31131799671723
BaseRepresentation
bin101111000101000110…
…1101110100001000101
3100122222001022201202010
41132022031232201011
53124024343231041
6114240210204433
710206300121245
oct1361215564105
9318861281663
10101103102021
1139972079a69
1217717283719
1396c320832c
144c71769b25
15296aed4a16
hex178a36e845

101103102021 has 32 divisors (see below), whose sum is σ = 136977730560. Its totient is φ = 66325158144.

The previous prime is 101103102013. The next prime is 101103102091. The reversal of 101103102021 is 120201301101.

It is not a de Polignac number, because 101103102021 - 23 = 101103102013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101103101988 and 101103102006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101103102091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58677666 + ... + 58679388.

It is an arithmetic number, because the mean of its divisors is an integer number (4280554080).

Almost surely, 2101103102021 is an apocalyptic number.

It is an amenable number.

101103102021 is a deficient number, since it is larger than the sum of its proper divisors (35874628539).

101103102021 is a wasteful number, since it uses less digits than its factorization.

101103102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2985.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 101103102021 its reverse (120201301101), we get a palindrome (221304403122).

The spelling of 101103102021 in words is "one hundred one billion, one hundred three million, one hundred two thousand, twenty-one".

Divisors: 1 3 113 179 339 537 967 1723 2901 5169 20227 60681 109271 173093 194699 308417 327813 519279 584097 925251 1666141 4998423 19559509 34851121 58678527 104553363 188273933 298239239 564821799 894717717 33701034007 101103102021