23021403012 has 96 divisors (see below), whose sum is σ = 60496844800. Its totient is φ = 7664297760.

The previous prime is 23021402969. The next prime is 23021403049. The reversal of 23021403012 is 21030412032.

23021403012 is a `hidden beast` number, since 230 + 21 + 403 + 0 + 12 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12867414 + ... + 12869202.

Almost surely, 2^23021403012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23021403012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30248422400).

23021403012 is an abundant number, since it is smaller than the sum of its proper divisors (37475441788).

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

23021403012 is a wasteful number, since it uses less digits than its factorization.

23021403012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3285 (or 3265 counting only the distinct ones).

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

Adding to 23021403012 its reverse (21030412032), we get a palindrome (44051815044).

The spelling of 23021403012 in words is "twenty-three billion, twenty-one million, four hundred three thousand, twelve".