102120032442 has 16 divisors (see below), whose sum is σ = 207037874880. Its totient is φ = 33573709152.

The previous prime is 102120032411. The next prime is 102120032477. The reversal of 102120032442 is 244230021201.

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, 116574942 + ... + 116575817.

It is an arithmetic number, because the mean of its divisors is an integer number (12939867180).

Almost surely, 2^102120032442 is an apocalyptic number.

102120032442 is an abundant number, since it is smaller than the sum of its proper divisors (104917842438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102120032442 is a wasteful number, since it uses less digits than its factorization.

102120032442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233150837.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 102120032442 its reverse (244230021201), we get a palindrome (346350053643).

The spelling of 102120032442 in words is "one hundred two billion, one hundred twenty million, thirty-two thousand, four hundred forty-two".