125630220601 has 2 divisors, whose sum is σ = 125630220602. Its totient is φ = 125630220600.

The previous prime is 125630220589. The next prime is 125630220623. The reversal of 125630220601 is 106022036521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69432777001 + 56197443600 = 263501^2 + 237060^2 .

It is an emirp because it is prime and its reverse (106022036521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125630220601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125630220601.

It is not a weakly prime, because it can be changed into another prime (125630230601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62815110300 + 62815110301.

It is an arithmetic number, because the mean of its divisors is an integer number (62815110301).

Almost surely, 2^125630220601 is an apocalyptic number.

It is an amenable number.

125630220601 is a deficient number, since it is larger than the sum of its proper divisors (1).

125630220601 is an equidigital number, since it uses as much as digits as its factorization.

125630220601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 125630220601 in words is "one hundred twenty-five billion, six hundred thirty million, two hundred twenty thousand, six hundred one".