3131400123 has 12 divisors (see below), whose sum is σ = 4523671360. Its totient is φ = 2087351856.

The previous prime is 3131400109. The next prime is 3131400131. The reversal of 3131400123 is 3210041313.

It is not a de Polignac number, because 3131400123 - 2¹² = 3131396027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3131400096 and 3131400105.

It is not an unprimeable number, because it can be changed into a prime (3131401123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90873 + ... + 120501.

Almost surely, 2^3131400123 is an apocalyptic number.

3131400123 is a deficient number, since it is larger than the sum of its proper divisors (1392271237).

3131400123 is a wasteful number, since it uses less digits than its factorization.

3131400123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41378 (or 41375 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3131400123 is about 55958.9145981228. The cubic root of 3131400123 is about 1463.0062724118.

Adding to 3131400123 its reverse (3210041313), we get a palindrome (6341441436).

The spelling of 3131400123 in words is "three billion, one hundred thirty-one million, four hundred thousand, one hundred twenty-three".