131023412125 has 8 divisors (see below), whose sum is σ = 163517218488. Its totient is φ = 104818729600.

The previous prime is 131023412101. The next prime is 131023412161. The reversal of 131023412125 is 521214320131.

It can be written as a sum of positive squares in 4 ways, for example, as 6698767716 + 124324644409 = 81846^2 + 352597^2 .

It is not a de Polignac number, because 131023412125 - 2²¹ = 131021314973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131023412125.

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, 524093524 + ... + 524093773.

It is an arithmetic number, because the mean of its divisors is an integer number (20439652311).

Almost surely, 2^131023412125 is an apocalyptic number.

It is an amenable number.

131023412125 is a deficient number, since it is larger than the sum of its proper divisors (32493806363).

131023412125 is an equidigital number, since it uses as much as digits as its factorization.

131023412125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048187312 (or 1048187302 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 131023412125 its reverse (521214320131), we get a palindrome (652237732256).

The spelling of 131023412125 in words is "one hundred thirty-one billion, twenty-three million, four hundred twelve thousand, one hundred twenty-five".