23210402000 has 80 divisors (see below), whose sum is σ = 56222813712. Its totient is φ = 9267609600.

The previous prime is 23210401993. The next prime is 23210402011. The reversal of 23210402000 is 20401232.

It can be written as a sum of positive squares in 8 ways, for example, as 5774784064 + 17435617936 = 75992^2 + 132044^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×23210402000² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1143944 + ... + 1164056.

Almost surely, 2^23210402000 is an apocalyptic number.

23210402000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23210402000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28111406856).

23210402000 is an abundant number, since it is smaller than the sum of its proper divisors (33012411712).

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

23210402000 is a wasteful number, since it uses less digits than its factorization.

23210402000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20713 (or 20697 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 23210402000 its reverse (20401232), we get a palindrome (23230803232).

The spelling of 23210402000 in words is "twenty-three billion, two hundred ten million, four hundred two thousand".