125012115644461 has 4 divisors (see below), whose sum is σ = 131591700678400. Its totient is φ = 118432530610524.

The previous prime is 125012115644417. The next prime is 125012115644483. The reversal of 125012115644461 is 164446511210521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125012115644461 - 2⁹ = 125012115643949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125012115644261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3289792516941 + ... + 3289792516978.

It is an arithmetic number, because the mean of its divisors is an integer number (32897925169600).

Almost surely, 2^{125012115644461} is an apocalyptic number.

It is an amenable number.

125012115644461 is a deficient number, since it is larger than the sum of its proper divisors (6579585033939).

125012115644461 is an equidigital number, since it uses as much as digits as its factorization.

125012115644461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6579585033938.

The product of its (nonzero) digits is 230400, while the sum is 43.

Adding to 125012115644461 its reverse (164446511210521), we get a palindrome (289458626854982).

The spelling of 125012115644461 in words is "one hundred twenty-five trillion, twelve billion, one hundred fifteen million, six hundred forty-four thousand, four hundred sixty-one".