100401123320 has 16 divisors (see below), whose sum is σ = 225902527560. Its totient is φ = 40160449312.

The previous prime is 100401123287. The next prime is 100401123323. The reversal of 100401123320 is 23321104001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100401123323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1255014002 + ... + 1255014081.

Almost surely, 2^100401123320 is an apocalyptic number.

100401123320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100401123320 is an abundant number, since it is smaller than the sum of its proper divisors (125501404240).

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

100401123320 is a wasteful number, since it uses less digits than its factorization.

100401123320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510028094 (or 2510028090 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 100401123320 its reverse (23321104001), we get a palindrome (123722227321).

The spelling of 100401123320 in words is "one hundred billion, four hundred one million, one hundred twenty-three thousand, three hundred twenty".