213133231023 has 16 divisors (see below), whose sum is σ = 284744141280. Its totient is φ = 141805673856.

The previous prime is 213133231007. The next prime is 213133231039. The reversal of 213133231023 is 320132331312.

It is an interprime number because it is at equal distance from previous prime (213133231007) and next prime (213133231039).

It is not a de Polignac number, because 213133231023 - 2⁴ = 213133231007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213133230984 and 213133231002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213133239023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11682873 + ... + 11701101.

It is an arithmetic number, because the mean of its divisors is an integer number (17796508830).

Almost surely, 2^213133231023 is an apocalyptic number.

213133231023 is a deficient number, since it is larger than the sum of its proper divisors (71610910257).

213133231023 is a wasteful number, since it uses less digits than its factorization.

213133231023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25786.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 213133231023 its reverse (320132331312), we get a palindrome (533265562335).

The spelling of 213133231023 in words is "two hundred thirteen billion, one hundred thirty-three million, two hundred thirty-one thousand, twenty-three".