31120124323 has 4 divisors (see below), whose sum is σ = 31365164800. Its totient is φ = 30875083848.

The previous prime is 31120124311. The next prime is 31120124327. The reversal of 31120124323 is 32342102113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32342102113 = 3767 ⋅8585639.

It is a cyclic number.

It is not a de Polignac number, because 31120124323 - 2⁵ = 31120124291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31120124294 and 31120124303.

It is not an unprimeable number, because it can be changed into a prime (31120124327) 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, 122520048 + ... + 122520301.

It is an arithmetic number, because the mean of its divisors is an integer number (7841291200).

Almost surely, 2^31120124323 is an apocalyptic number.

31120124323 is a deficient number, since it is larger than the sum of its proper divisors (245040477).

31120124323 is a wasteful number, since it uses less digits than its factorization.

31120124323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245040476.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31120124323 its reverse (32342102113), we get a palindrome (63462226436).

The spelling of 31120124323 in words is "thirty-one billion, one hundred twenty million, one hundred twenty-four thousand, three hundred twenty-three".