21130425001000 has 128 divisors (see below), whose sum is σ = 57091360435200. Its totient is φ = 7170029107200.

The previous prime is 21130425000991. The next prime is 21130425001051. The reversal of 21130425001000 is 10052403112.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14880960 + ... + 16238959.

It is an arithmetic number, because the mean of its divisors is an integer number (446026253400).

Almost surely, 2^{21130425001000} is an apocalyptic number.

21130425001000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21130425001000 is an abundant number, since it is smaller than the sum of its proper divisors (35960935434200).

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

21130425001000 is a wasteful number, since it uses less digits than its factorization.

21130425001000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31120044 (or 31120030 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 21130425001000 its reverse (10052403112), we get a palindrome (21140477404112).

The spelling of 21130425001000 in words is "twenty-one trillion, one hundred thirty billion, four hundred twenty-five million, one thousand".