102002001400 has 48 divisors (see below), whose sum is σ = 255397325400. Its totient is φ = 37662276480.

The previous prime is 102002001349. The next prime is 102002001473. The reversal of 102002001400 is 4100200201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 19613170 + ... + 19618369.

Almost surely, 2^102002001400 is an apocalyptic number.

102002001400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102002001400 is an abundant number, since it is smaller than the sum of its proper divisors (153395324000).

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

102002001400 is a wasteful number, since it uses less digits than its factorization.

102002001400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39231568 (or 39231559 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 102002001400 its reverse (4100200201), we get a palindrome (106102201601).

The spelling of 102002001400 in words is "one hundred two billion, two million, one thousand, four hundred".