120311442 has 24 divisors (see below), whose sum is σ = 263115216. Its totient is φ = 39728376.

The previous prime is 120311423. The next prime is 120311453. The reversal of 120311442 is 244113021.

It is a super-2 number, since 2×120311442² = 28949686152238728, which contains 22 as substring.

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

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, 29308 + ... + 33159.

It is an arithmetic number, because the mean of its divisors is an integer number (10963134).

Almost surely, 2^120311442 is an apocalyptic number.

120311442 is an abundant number, since it is smaller than the sum of its proper divisors (142803774).

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

120311442 is a wasteful number, since it uses less digits than its factorization.

120311442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62582 (or 62579 counting only the distinct ones).

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

The square root of 120311442 is about 10968.6572560182. The cubic root of 120311442 is about 493.6687584754.

Adding to 120311442 its reverse (244113021), we get a palindrome (364424463).

The spelling of 120311442 in words is "one hundred twenty million, three hundred eleven thousand, four hundred forty-two".