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13120202101031 = 1935411231102077
BaseRepresentation
bin1011111011101100100011…
…1111000101000100100111
31201110021112102221221021022
42332323020333011010213
53204430133214213111
643523200532441355
72522621560531544
oct276731077050447
951407472857238
1013120202101031
1141a9279052363
12157a94917925b
137422ca9b419c
14335042139bcb
1517b44725e2db
hexbeec8fc5127

13120202101031 has 16 divisors (see below), whose sum is σ = 13223422574208. Its totient is φ = 13017384806400.

The previous prime is 13120202101021. The next prime is 13120202101033. The reversal of 13120202101031 is 13010120202131.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13120202101031 is a prime.

It is a super-2 number, since 2×131202021010312 (a number of 27 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 (13120202101033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128481365 + ... + 128583441.

It is an arithmetic number, because the mean of its divisors is an integer number (826463910888).

Almost surely, 213120202101031 is an apocalyptic number.

13120202101031 is a deficient number, since it is larger than the sum of its proper divisors (103220473177).

13120202101031 is a wasteful number, since it uses less digits than its factorization.

13120202101031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104042.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 13120202101031 its reverse (13010120202131), we get a palindrome (26130322303162).

The spelling of 13120202101031 in words is "thirteen trillion, one hundred twenty billion, two hundred two million, one hundred one thousand, thirty-one".

Divisors: 1 193 541 1231 102077 104413 237583 665971 19700861 55223657 125656787 128532403 10658165801 24251759891 67980321767 13120202101031