125104004321 has 4 divisors (see below), whose sum is σ = 125163213252. Its totient is φ = 125044795392.

The previous prime is 125104004299. The next prime is 125104004357. The reversal of 125104004321 is 123400401521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123400401521 = 79 ⋅1562030399.

It can be written as a sum of positive squares in 2 ways, for example, as 11594982400 + 113509021921 = 107680^2 + 336911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125104004321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125104004371) 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, 29601296 + ... + 29605521.

It is an arithmetic number, because the mean of its divisors is an integer number (31290803313).

Almost surely, 2^125104004321 is an apocalyptic number.

It is an amenable number.

125104004321 is a deficient number, since it is larger than the sum of its proper divisors (59208931).

125104004321 is an equidigital number, since it uses as much as digits as its factorization.

125104004321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59208930.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 125104004321 its reverse (123400401521), we get a palindrome (248504405842).

The spelling of 125104004321 in words is "one hundred twenty-five billion, one hundred four million, four thousand, three hundred twenty-one".