31545351423 has 32 divisors (see below), whose sum is σ = 47387865600. Its totient is φ = 20995987320.

The previous prime is 31545351401. The next prime is 31545351427. The reversal of 31545351423 is 32415354513.

31545351423 is a `hidden beast` number, since 31 + 54 + 535 + 1 + 42 + 3 = 666.

It is not a de Polignac number, because 31545351423 - 2²⁹ = 31008480511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31545351427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1368568 + ... + 1391426.

It is an arithmetic number, because the mean of its divisors is an integer number (1480870800).

Almost surely, 2^31545351423 is an apocalyptic number.

31545351423 is a deficient number, since it is larger than the sum of its proper divisors (15842514177).

31545351423 is an frugal number, since it uses more digits than its factorization.

31545351423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23511 (or 23493 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The spelling of 31545351423 in words is "thirty-one billion, five hundred forty-five million, three hundred fifty-one thousand, four hundred twenty-three".