131023211010231 has 16 divisors (see below), whose sum is σ = 177563991511520. Its totient is φ = 85915658949120.

The previous prime is 131023211010173. The next prime is 131023211010277. The reversal of 131023211010231 is 132010112320131.

It is not a de Polignac number, because 131023211010231 - 2²⁹ = 131022674139319 is a prime.

It is a super-2 number, since 2×131023211010231² (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 = 131023211010198 and 131023211010207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131023211010281) 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, 8222355 + ... + 18156363.

It is an arithmetic number, because the mean of its divisors is an integer number (11097749469470).

Almost surely, 2^{131023211010231} is an apocalyptic number.

131023211010231 is a deficient number, since it is larger than the sum of its proper divisors (46540780501289).

131023211010231 is an equidigital number, since it uses as much as digits as its factorization.

131023211010231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10006146.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 131023211010231 its reverse (132010112320131), we get a palindrome (263033323330362).

The spelling of 131023211010231 in words is "one hundred thirty-one trillion, twenty-three billion, two hundred eleven million, ten thousand, two hundred thirty-one".