21130103132142 has 32 divisors (see below), whose sum is σ = 43287429100032. Its totient is φ = 6873053276544.

The previous prime is 21130103132081. The next prime is 21130103132219. The reversal of 21130103132142 is 24123130103112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111076248 + ... + 111266315.

It is an arithmetic number, because the mean of its divisors is an integer number (1352732159376).

Almost surely, 2^{21130103132142} is an apocalyptic number.

21130103132142 is an abundant number, since it is smaller than the sum of its proper divisors (22157325967890).

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

21130103132142 is a wasteful number, since it uses less digits than its factorization.

21130103132142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222342952.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 21130103132142 its reverse (24123130103112), we get a palindrome (45253233235254).

The spelling of 21130103132142 in words is "twenty-one trillion, one hundred thirty billion, one hundred three million, one hundred thirty-two thousand, one hundred forty-two".