125201656411 has 4 divisors (see below), whose sum is σ = 134832553072. Its totient is φ = 115570759752.

The previous prime is 125201656403. The next prime is 125201656421. The reversal of 125201656411 is 114656102521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125201656411 - 2³ = 125201656403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125201656421) 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, 4815448311 + ... + 4815448336.

It is an arithmetic number, because the mean of its divisors is an integer number (33708138268).

Almost surely, 2^125201656411 is an apocalyptic number.

125201656411 is a deficient number, since it is larger than the sum of its proper divisors (9630896661).

125201656411 is an equidigital number, since it uses as much as digits as its factorization.

125201656411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9630896660.

The product of its (nonzero) digits is 14400, while the sum is 34.

Adding to 125201656411 its reverse (114656102521), we get a palindrome (239857758932).

The spelling of 125201656411 in words is "one hundred twenty-five billion, two hundred one million, six hundred fifty-six thousand, four hundred eleven".