120511115142 has 96 divisors (see below), whose sum is σ = 286860407040. Its totient is φ = 33441246720.

The previous prime is 120511115129. The next prime is 120511115183. The reversal of 120511115142 is 241511115021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 620359 + ... + 791117.

It is an arithmetic number, because the mean of its divisors is an integer number (2988129240).

Almost surely, 2^120511115142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120511115142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143430203520).

120511115142 is an abundant number, since it is smaller than the sum of its proper divisors (166349291898).

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

120511115142 is a wasteful number, since it uses less digits than its factorization.

120511115142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170846 (or 170829 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 24.

The spelling of 120511115142 in words is "one hundred twenty billion, five hundred eleven million, one hundred fifteen thousand, one hundred forty-two".