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13131040032101 = 17077768931313
BaseRepresentation
bin1011111100010100111011…
…1110100000010101100101
31201111022111202102212201202
42333011032332200111211
53210114332222011401
643532152211132245
72523454261450325
oct277051676402545
951438452385652
1013131040032101
11420292a855392
121580a728a4085
13743337175454
1433578d69d285
1517b87d98806b
hexbf14efa0565

13131040032101 has 4 divisors (see below), whose sum is σ = 13131808980492. Its totient is φ = 13130271083712.

The previous prime is 13131040032073. The next prime is 13131040032133. The reversal of 13131040032101 is 10123004013131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3442605641476 + 9688434390625 = 1855426^2 + 3112625^2 .

It is a cyclic number.

It is not a de Polignac number, because 13131040032101 - 234 = 13113860162917 is a prime.

It is a super-2 number, since 2×131310400321012 (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 (13131040031101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384448580 + ... + 384482733.

It is an arithmetic number, because the mean of its divisors is an integer number (3282952245123).

Almost surely, 213131040032101 is an apocalyptic number.

It is an amenable number.

13131040032101 is a deficient number, since it is larger than the sum of its proper divisors (768948391).

13131040032101 is an equidigital number, since it uses as much as digits as its factorization.

13131040032101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768948390.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 13131040032101 its reverse (10123004013131), we get a palindrome (23254044045232).

The spelling of 13131040032101 in words is "thirteen trillion, one hundred thirty-one billion, forty million, thirty-two thousand, one hundred one".

Divisors: 1 17077 768931313 13131040032101