2131340123425 has 24 divisors (see below), whose sum is σ = 2647025758080. Its totient is φ = 1702386916800.

The previous prime is 2131340123413. The next prime is 2131340123501. The reversal of 2131340123425 is 5243210431312.

It is not a de Polignac number, because 2131340123425 - 2³⁹ = 1581584309537 is a prime.

It is a super-2 number, since 2×2131340123425² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79045096 + ... + 79072054.

It is an arithmetic number, because the mean of its divisors is an integer number (110292739920).

Almost surely, 2^{2131340123425} is an apocalyptic number.

2131340123425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2131340123425 is a deficient number, since it is larger than the sum of its proper divisors (515685634655).

2131340123425 is a wasteful number, since it uses less digits than its factorization.

2131340123425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31833 (or 31828 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 2131340123425 its reverse (5243210431312), we get a palindrome (7374550554737).

The spelling of 2131340123425 in words is "two trillion, one hundred thirty-one billion, three hundred forty million, one hundred twenty-three thousand, four hundred twenty-five".