10131540231 has 4 divisors (see below), whose sum is σ = 13508720312. Its totient is φ = 6754360152.

The previous prime is 10131540169. The next prime is 10131540233. The reversal of 10131540231 is 13204513101.

10131540231 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10131540231 - 2³¹ = 7984056583 is a prime.

It is a super-2 number, since 2×10131540231² (a number of 21 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 = 10131540198 and 10131540207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10131540233) 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, 1688590036 + ... + 1688590041.

It is an arithmetic number, because the mean of its divisors is an integer number (3377180078).

Almost surely, 2^10131540231 is an apocalyptic number.

10131540231 is a deficient number, since it is larger than the sum of its proper divisors (3377180081).

10131540231 is an equidigital number, since it uses as much as digits as its factorization.

10131540231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3377180080.

The product of its (nonzero) digits is 360, while the sum is 21.

The spelling of 10131540231 in words is "ten billion, one hundred thirty-one million, five hundred forty thousand, two hundred thirty-one".