23032021212 has 36 divisors (see below), whose sum is σ = 60227414520. Its totient is φ = 7412604192.

The previous prime is 23032021211. The next prime is 23032021213. The reversal of 23032021212 is 21212023032.

It is an interprime number because it is at equal distance from previous prime (23032021211) and next prime (23032021213).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×23032021212² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23032021211) 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, 11029618 + ... + 11031705.

Almost surely, 2^23032021212 is an apocalyptic number.

It is an amenable number.

23032021212 is an abundant number, since it is smaller than the sum of its proper divisors (37195393308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23032021212 is a wasteful number, since it uses less digits than its factorization.

23032021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22061362 (or 22061357 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 23032021212 its reverse (21212023032), we get a palindrome (44244044244).

The spelling of 23032021212 in words is "twenty-three billion, thirty-two million, twenty-one thousand, two hundred twelve".