125142122102 has 4 divisors (see below), whose sum is σ = 187713183156. Its totient is φ = 62571061050.

The previous prime is 125142121963. The next prime is 125142122153. The reversal of 125142122102 is 201221241521.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31285530524 + ... + 31285530527.

It is an arithmetic number, because the mean of its divisors is an integer number (46928295789).

Almost surely, 2^125142122102 is an apocalyptic number.

125142122102 is a deficient number, since it is larger than the sum of its proper divisors (62571061054).

125142122102 is an equidigital number, since it uses as much as digits as its factorization.

125142122102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62571061053.

The product of its (nonzero) digits is 640, while the sum is 23.

Adding to 125142122102 its reverse (201221241521), we get a palindrome (326363363623).

The spelling of 125142122102 in words is "one hundred twenty-five billion, one hundred forty-two million, one hundred twenty-two thousand, one hundred two".