101421321100 has 72 divisors (see below), whose sum is σ = 241530041088. Its totient is φ = 36659572800.

The previous prime is 101421321097. The next prime is 101421321257. The reversal of 101421321100 is 1123124101.

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, 92352 + ... + 459751.

It is an arithmetic number, because the mean of its divisors is an integer number (3354583904).

Almost surely, 2^101421321100 is an apocalyptic number.

101421321100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101421321100 is an abundant number, since it is smaller than the sum of its proper divisors (140108719988).

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

101421321100 is a wasteful number, since it uses less digits than its factorization.

101421321100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552295 (or 552288 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 101421321100 its reverse (1123124101), we get a palindrome (102544445201).

The spelling of 101421321100 in words is "one hundred one billion, four hundred twenty-one million, three hundred twenty-one thousand, one hundred".