10311012231 has 32 divisors (see below), whose sum is σ = 14954267328. Its totient is φ = 6281763840.

The previous prime is 10311012211. The next prime is 10311012241. The reversal of 10311012231 is 13221011301.

It is a happy number.

It is not a de Polignac number, because 10311012231 - 2¹⁴ = 10310995847 is a prime.

It is a super-2 number, since 2×10311012231² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10311012231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10311012211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2118741 + ... + 2123601.

It is an arithmetic number, because the mean of its divisors is an integer number (467320854).

Almost surely, 2^10311012231 is an apocalyptic number.

10311012231 is a deficient number, since it is larger than the sum of its proper divisors (4643255097).

10311012231 is a wasteful number, since it uses less digits than its factorization.

10311012231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5411.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 10311012231 its reverse (13221011301), we get a palindrome (23532023532).

The spelling of 10311012231 in words is "ten billion, three hundred eleven million, twelve thousand, two hundred thirty-one".