100401123021 has 8 divisors (see below), whose sum is σ = 141742761984. Its totient is φ = 62996783040.

The previous prime is 100401123007. The next prime is 100401123101. The reversal of 100401123021 is 120321104001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100401123021 - 2⁷ = 100401122893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100401123001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 984324685 + ... + 984324786.

It is an arithmetic number, because the mean of its divisors is an integer number (17717845248).

Almost surely, 2^100401123021 is an apocalyptic number.

It is an amenable number.

100401123021 is a deficient number, since it is larger than the sum of its proper divisors (41341638963).

100401123021 is a wasteful number, since it uses less digits than its factorization.

100401123021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1968649491.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 100401123021 its reverse (120321104001), we get a palindrome (220722227022).

The spelling of 100401123021 in words is "one hundred billion, four hundred one million, one hundred twenty-three thousand, twenty-one".