31120201323 has 16 divisors (see below), whose sum is σ = 46112832000. Its totient is φ = 20742827400.

The previous prime is 31120201283. The next prime is 31120201349. The reversal of 31120201323 is 32310202113.

It is not a de Polignac number, because 31120201323 - 2¹⁴ = 31120184939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31120201296 and 31120201305.

It is not an unprimeable number, because it can be changed into a prime (31120201393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36778 + ... + 252176.

It is an arithmetic number, because the mean of its divisors is an integer number (2882052000).

Almost surely, 2^31120201323 is an apocalyptic number.

31120201323 is a deficient number, since it is larger than the sum of its proper divisors (14992630677).

31120201323 is a wasteful number, since it uses less digits than its factorization.

31120201323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220759 (or 220753 counting only the distinct ones).

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

Adding to 31120201323 its reverse (32310202113), we get a palindrome (63430403436).

The spelling of 31120201323 in words is "thirty-one billion, one hundred twenty million, two hundred one thousand, three hundred twenty-three".