125238802313 has 2 divisors, whose sum is σ = 125238802314. Its totient is φ = 125238802312.

The previous prime is 125238802301. The next prime is 125238802321. The reversal of 125238802313 is 313208832521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92119534144 + 33119268169 = 303512^2 + 181987^2 .

It is a cyclic number.

It is not a de Polignac number, because 125238802313 - 2¹⁸ = 125238540169 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (125238802333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62619401156 + 62619401157.

It is an arithmetic number, because the mean of its divisors is an integer number (62619401157).

Almost surely, 2^125238802313 is an apocalyptic number.

It is an amenable number.

125238802313 is a deficient number, since it is larger than the sum of its proper divisors (1).

125238802313 is an equidigital number, since it uses as much as digits as its factorization.

125238802313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 125238802313 in words is "one hundred twenty-five billion, two hundred thirty-eight million, eight hundred two thousand, three hundred thirteen".