31213002023 has 8 divisors (see below), whose sum is σ = 36822712320. Its totient is φ = 25890969240.

The previous prime is 31213002017. The next prime is 31213002043. The reversal of 31213002023 is 32020031213.

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

It is a cyclic number.

It is not a de Polignac number, because 31213002023 - 2²⁰ = 31211953447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31213001992 and 31213002010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31213002043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71919143 + ... + 71919576.

It is an arithmetic number, because the mean of its divisors is an integer number (4602839040).

Almost surely, 2^31213002023 is an apocalyptic number.

31213002023 is a deficient number, since it is larger than the sum of its proper divisors (5609710297).

31213002023 is a wasteful number, since it uses less digits than its factorization.

31213002023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143838757.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 31213002023 its reverse (32020031213), we get a palindrome (63233033236).

The spelling of 31213002023 in words is "thirty-one billion, two hundred thirteen million, two thousand, twenty-three".