2131719951125 has 8 divisors (see below), whose sum is σ = 2660386499160. Its totient is φ = 1705375960800.

The previous prime is 2131719951113. The next prime is 2131719951133. The reversal of 2131719951125 is 5211599171312.

It can be written as a sum of positive squares in 4 ways, for example, as 624229566724 + 1507490384401 = 790082^2 + 1227799^2 .

It is not a de Polignac number, because 2131719951125 - 2¹⁸ = 2131719688981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2131719951125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8526879680 + ... + 8526879929.

It is an arithmetic number, because the mean of its divisors is an integer number (332548312395).

Almost surely, 2^{2131719951125} is an apocalyptic number.

2131719951125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2131719951125 is a deficient number, since it is larger than the sum of its proper divisors (528666548035).

2131719951125 is an equidigital number, since it uses as much as digits as its factorization.

2131719951125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17053759624 (or 17053759614 counting only the distinct ones).

The product of its digits is 170100, while the sum is 47.

The spelling of 2131719951125 in words is "two trillion, one hundred thirty-one billion, seven hundred nineteen million, nine hundred fifty-one thousand, one hundred twenty-five".