125201163242 has 16 divisors (see below), whose sum is σ = 188009008200. Its totient is φ = 62531535360.

The previous prime is 125201163179. The next prime is 125201163259. The reversal of 125201163242 is 242361102521.

It can be written as a sum of positive squares in 4 ways, for example, as 16638162121 + 108563001121 = 128989^2 + 329489^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7404734 + ... + 7421622.

Almost surely, 2^125201163242 is an apocalyptic number.

125201163242 is a deficient number, since it is larger than the sum of its proper divisors (62807844958).

125201163242 is a wasteful number, since it uses less digits than its factorization.

125201163242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20761.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 125201163242 its reverse (242361102521), we get a palindrome (367562265763).

The spelling of 125201163242 in words is "one hundred twenty-five billion, two hundred one million, one hundred sixty-three thousand, two hundred forty-two".