10031304431 has 4 divisors (see below), whose sum is σ = 10201326600. Its totient is φ = 9861282264.

The previous prime is 10031304383. The next prime is 10031304443. The reversal of 10031304431 is 13440313001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10031304431 is a prime.

It is a super-2 number, since 2×10031304431² (a number of 21 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 (10031301431) 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, 85010996 + ... + 85011113.

It is an arithmetic number, because the mean of its divisors is an integer number (2550331650).

Almost surely, 2^10031304431 is an apocalyptic number.

10031304431 is a deficient number, since it is larger than the sum of its proper divisors (170022169).

10031304431 is an equidigital number, since it uses as much as digits as its factorization.

10031304431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170022168.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 10031304431 its reverse (13440313001), we get a palindrome (23471617432).

The spelling of 10031304431 in words is "ten billion, thirty-one million, three hundred four thousand, four hundred thirty-one".