213103031023 has 24 divisors (see below), whose sum is σ = 224581057920. Its totient is φ = 202060857600.

The previous prime is 213103031017. The next prime is 213103031033. The reversal of 213103031023 is 320130301312.

It is a de Polignac number, because none of the positive numbers 2^k-213103031023 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 (213103031033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89500293 + ... + 89502673.

It is an arithmetic number, because the mean of its divisors is an integer number (9357544080).

Almost surely, 2^213103031023 is an apocalyptic number.

213103031023 is a deficient number, since it is larger than the sum of its proper divisors (11478026897).

213103031023 is a wasteful number, since it uses less digits than its factorization.

213103031023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3939 (or 3898 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 213103031023 its reverse (320130301312), we get a palindrome (533233332335).

The spelling of 213103031023 in words is "two hundred thirteen billion, one hundred three million, thirty-one thousand, twenty-three".