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131031224133131 = 725469037349611
BaseRepresentation
bin11101110010110000010101…
…100100011010011000001011
3122011221110111022011000121002
4131302300111210122120023
5114133303421334230011
61142402525142005215
736412456612206560
oct3562602544323013
9564843438130532
10131031224133131
1138829037056523
121284288ba1680b
135816264709a3a
14244dd33462867
15102365213ec3b
hex772c1591a60b

131031224133131 has 8 divisors (see below), whose sum is σ = 149750049609984. Its totient is φ = 112312418449320.

The previous prime is 131031224133107. The next prime is 131031224133151. The reversal of 131031224133131 is 131331422130131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131031224133131 is a prime.

It is a super-2 number, since 2×1310312241331312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131031224133094 and 131031224133103.

It is not an unprimeable number, because it can be changed into a prime (131031224133151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14153516 + ... + 21503126.

It is an arithmetic number, because the mean of its divisors is an integer number (18718756201248).

Almost surely, 2131031224133131 is an apocalyptic number.

131031224133131 is a deficient number, since it is larger than the sum of its proper divisors (18718825476853).

131031224133131 is an equidigital number, since it uses as much as digits as its factorization.

131031224133131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9896521.

The product of its (nonzero) digits is 3888, while the sum is 29.

Adding to 131031224133131 its reverse (131331422130131), we get a palindrome (262362646263262).

The spelling of 131031224133131 in words is "one hundred thirty-one trillion, thirty-one billion, two hundred twenty-four million, one hundred thirty-three thousand, one hundred thirty-one".

Divisors: 1 7 2546903 7349611 17828321 51447277 18718746304733 131031224133131