125021343259 has 2 divisors, whose sum is σ = 125021343260. Its totient is φ = 125021343258.

The previous prime is 125021343233. The next prime is 125021343289. The reversal of 125021343259 is 952343120521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125021343259 is a prime.

It is not a weakly prime, because it can be changed into another prime (125021343289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62510671629 + 62510671630.

It is an arithmetic number, because the mean of its divisors is an integer number (62510671630).

Almost surely, 2^125021343259 is an apocalyptic number.

125021343259 is a deficient number, since it is larger than the sum of its proper divisors (1).

125021343259 is an equidigital number, since it uses as much as digits as its factorization.

125021343259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 125021343259 in words is "one hundred twenty-five billion, twenty-one million, three hundred forty-three thousand, two hundred fifty-nine".