31143004023 has 8 divisors (see below), whose sum is σ = 42863489536. Its totient is φ = 20092260600.

The previous prime is 31143003971. The next prime is 31143004027. The reversal of 31143004023 is 32040034113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31143004023 - 2²⁶ = 31075895159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31143004027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167435413 + ... + 167435598.

It is an arithmetic number, because the mean of its divisors is an integer number (5357936192).

Almost surely, 2^31143004023 is an apocalyptic number.

31143004023 is a deficient number, since it is larger than the sum of its proper divisors (11720485513).

31143004023 is a wasteful number, since it uses less digits than its factorization.

31143004023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334871045.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 31143004023 its reverse (32040034113), we get a palindrome (63183038136).

The spelling of 31143004023 in words is "thirty-one billion, one hundred forty-three million, four thousand, twenty-three".