10131223023431 has 4 divisors (see below), whose sum is σ = 10229584412112. Its totient is φ = 10032861634752.

The previous prime is 10131223023407. The next prime is 10131223023437. The reversal of 10131223023431 is 13432032213101.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10131223023431 - 2¹⁰ = 10131223022407 is a prime.

It is a super-2 number, since 2×10131223023431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10131223023431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10131223023437) 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, 49180694186 + ... + 49180694391.

It is an arithmetic number, because the mean of its divisors is an integer number (2557396103028).

Almost surely, 2^{10131223023431} is an apocalyptic number.

10131223023431 is a deficient number, since it is larger than the sum of its proper divisors (98361388681).

10131223023431 is an equidigital number, since it uses as much as digits as its factorization.

10131223023431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98361388680.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 10131223023431 its reverse (13432032213101), we get a palindrome (23563255236532).

The spelling of 10131223023431 in words is "ten trillion, one hundred thirty-one billion, two hundred twenty-three million, twenty-three thousand, four hundred thirty-one".