10031331123 has 18 divisors (see below), whose sum is σ = 15926697332. Its totient is φ = 6079593960.

The previous prime is 10031331097. The next prime is 10031331127. The reversal of 10031331123 is 32113313001.

It is a happy number.

It is not a de Polignac number, because 10031331123 - 2¹² = 10031327027 is a prime.

It is a super-2 number, since 2×10031331123² (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 = 10031331096 and 10031331105.

It is not an unprimeable number, because it can be changed into a prime (10031331127) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4604665 + ... + 4606842.

Almost surely, 2^10031331123 is an apocalyptic number.

10031331123 is a deficient number, since it is larger than the sum of its proper divisors (5895366209).

10031331123 is a wasteful number, since it uses less digits than its factorization.

10031331123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9211535 (or 9211521 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 10031331123 its reverse (32113313001), we get a palindrome (42144644124).

The spelling of 10031331123 in words is "ten billion, thirty-one million, three hundred thirty-one thousand, one hundred twenty-three".