1232120142 has 24 divisors (see below), whose sum is σ = 2912284440. Its totient is φ = 373369680.

The previous prime is 1232120081. The next prime is 1232120159. The reversal of 1232120142 is 2410212321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3111217 + ... + 3111612.

It is an arithmetic number, because the mean of its divisors is an integer number (121345185).

Almost surely, 2^1232120142 is an apocalyptic number.

1232120142 is an abundant number, since it is smaller than the sum of its proper divisors (1680164298).

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

1232120142 is a wasteful number, since it uses less digits than its factorization.

1232120142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6222848 (or 6222845 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1232120142 is about 35101.5689392939. The cubic root of 1232120142 is about 1072.0565281461.

Adding to 1232120142 its reverse (2410212321), we get a palindrome (3642332463).

The spelling of 1232120142 in words is "one billion, two hundred thirty-two million, one hundred twenty thousand, one hundred forty-two".