125115410334121 has 4 divisors (see below), whose sum is σ = 125437043780100. Its totient is φ = 124793776888144.

The previous prime is 125115410334017. The next prime is 125115410334143. The reversal of 125115410334121 is 121433014511521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52357308147225 + 72758102186896 = 7235835^2 + 8529836^2 .

It is a cyclic number.

It is not a de Polignac number, because 125115410334121 - 2⁷ = 125115410333993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125115410334191) 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, 160816722406 + ... + 160816723183.

It is an arithmetic number, because the mean of its divisors is an integer number (31359260945025).

Almost surely, 2^{125115410334121} is an apocalyptic number.

It is an amenable number.

125115410334121 is a deficient number, since it is larger than the sum of its proper divisors (321633445979).

125115410334121 is an equidigital number, since it uses as much as digits as its factorization.

125115410334121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321633445978.

The product of its (nonzero) digits is 14400, while the sum is 34.

Adding to 125115410334121 its reverse (121433014511521), we get a palindrome (246548424845642).

The spelling of 125115410334121 in words is "one hundred twenty-five trillion, one hundred fifteen billion, four hundred ten million, three hundred thirty-four thousand, one hundred twenty-one".