125330125001 has 2 divisors, whose sum is σ = 125330125002. Its totient is φ = 125330125000.

The previous prime is 125330124979. The next prime is 125330125009. The reversal of 125330125001 is 100521033521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83116313401 + 42213811600 = 288299^2 + 205460^2 .

It is a cyclic number.

It is not a de Polignac number, because 125330125001 - 2³⁴ = 108150255817 is a prime.

It is not a weakly prime, because it can be changed into another prime (125330125009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62665062500 + 62665062501.

It is an arithmetic number, because the mean of its divisors is an integer number (62665062501).

Almost surely, 2^125330125001 is an apocalyptic number.

It is an amenable number.

125330125001 is a deficient number, since it is larger than the sum of its proper divisors (1).

125330125001 is an equidigital number, since it uses as much as digits as its factorization.

125330125001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 125330125001 its reverse (100521033521), we get a palindrome (225851158522).

The spelling of 125330125001 in words is "one hundred twenty-five billion, three hundred thirty million, one hundred twenty-five thousand, one".