31020204023 has 12 divisors (see below), whose sum is σ = 32813518320. Its totient is φ = 29320469856.

The previous prime is 31020204013. The next prime is 31020204037. The reversal of 31020204023 is 32040202013.

It is not a de Polignac number, because 31020204023 - 2⁶ = 31020203959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31020203992 and 31020204010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31020204013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60611 + ... + 256347.

It is an arithmetic number, because the mean of its divisors is an integer number (2734459860).

Almost surely, 2^31020204023 is an apocalyptic number.

31020204023 is a deficient number, since it is larger than the sum of its proper divisors (1793314297).

31020204023 is a wasteful number, since it uses less digits than its factorization.

31020204023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196214 (or 196195 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 31020204023 its reverse (32040202013), we get a palindrome (63060406036).

The spelling of 31020204023 in words is "thirty-one billion, twenty million, two hundred four thousand, twenty-three".