122531425042 has 48 divisors (see below), whose sum is σ = 200690244000. Its totient is φ = 56080791936.

The previous prime is 122531425033. The next prime is 122531425067. The reversal of 122531425042 is 240524135221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122531424995 and 122531425013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27489678 + ... + 27494134.

It is an arithmetic number, because the mean of its divisors is an integer number (4181046750).

Almost surely, 2^122531425042 is an apocalyptic number.

122531425042 is a deficient number, since it is larger than the sum of its proper divisors (78158818958).

122531425042 is a wasteful number, since it uses less digits than its factorization.

122531425042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5147 (or 5134 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 122531425042 in words is "one hundred twenty-two billion, five hundred thirty-one million, four hundred twenty-five thousand, forty-two".