10311323121 has 24 divisors (see below), whose sum is σ = 16254912960. Its totient is φ = 6246684000.

The previous prime is 10311323119. The next prime is 10311323153. The reversal of 10311323121 is 12132311301.

10311323121 is a `hidden beast` number, since 10 + 311 + 32 + 312 + 1 = 666.

It is not a de Polignac number, because 10311323121 - 2¹ = 10311323119 is a prime.

It is a super-3 number, since 3×10311323121³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10311323094 and 10311323103.

It is not an unprimeable number, because it can be changed into a prime (10311323101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 232135 + ... + 272963.

It is an arithmetic number, because the mean of its divisors is an integer number (677288040).

Almost surely, 2^10311323121 is an apocalyptic number.

10311323121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10311323121 is a deficient number, since it is larger than the sum of its proper divisors (5943589839).

10311323121 is a wasteful number, since it uses less digits than its factorization.

10311323121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43397 (or 43394 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 10311323121 its reverse (12132311301), we get a palindrome (22443634422).

The spelling of 10311323121 in words is "ten billion, three hundred eleven million, three hundred twenty-three thousand, one hundred twenty-one".