102001404140 has 24 divisors (see below), whose sum is σ = 216783710640. Its totient is φ = 40308987968.

The previous prime is 102001404137. The next prime is 102001404161. The reversal of 102001404140 is 41404100201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30721655 + ... + 30724974.

It is an arithmetic number, because the mean of its divisors is an integer number (9032654610).

Almost surely, 2^102001404140 is an apocalyptic number.

102001404140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102001404140 is an abundant number, since it is smaller than the sum of its proper divisors (114782306500).

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

102001404140 is a wasteful number, since it uses less digits than its factorization.

102001404140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61446721 (or 61446719 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 102001404140 its reverse (41404100201), we get a palindrome (143405504341).

The spelling of 102001404140 in words is "one hundred two billion, one million, four hundred four thousand, one hundred forty".