2102130142400 has 42 divisors (see below), whose sum is σ = 5172553985580. Its totient is φ = 840852056320.

The previous prime is 2102130142397. The next prime is 2102130142417. The reversal of 2102130142400 is 42410312012.

It is a super-2 number, since 2×2102130142400² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 656914070 + ... + 656917269.

Almost surely, 2^{2102130142400} is an apocalyptic number.

2102130142400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102130142400 is an abundant number, since it is smaller than the sum of its proper divisors (3070423843180).

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

2102130142400 is a wasteful number, since it uses less digits than its factorization.

2102130142400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313831361 (or 1313831346 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 2102130142400 its reverse (42410312012), we get a palindrome (2144540454412).

The spelling of 2102130142400 in words is "two trillion, one hundred two billion, one hundred thirty million, one hundred forty-two thousand, four hundred".