23021212040400 has 120 divisors (see below), whose sum is σ = 84279561062464. Its totient is φ = 5261991321600.

The previous prime is 23021212040389. The next prime is 23021212040483. The reversal of 23021212040400 is 404021212032.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1370301841 + ... + 1370318640.

Almost surely, 2^{23021212040400} is an apocalyptic number.

23021212040400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23021212040400 is an abundant number, since it is smaller than the sum of its proper divisors (61258349022064).

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

23021212040400 is a wasteful number, since it uses less digits than its factorization.

23021212040400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740620509 (or 2740620498 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 23021212040400 its reverse (404021212032), we get a palindrome (23425233252432).

The spelling of 23021212040400 in words is "twenty-three trillion, twenty-one billion, two hundred twelve million, forty thousand, four hundred".