111401142 has 16 divisors (see below), whose sum is σ = 234528960. Its totient is φ = 35179272.

The previous prime is 111401131. The next prime is 111401203. The reversal of 111401142 is 241104111.

It is a congruent number.

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, 488488 + ... + 488715.

It is an arithmetic number, because the mean of its divisors is an integer number (14658060).

Almost surely, 2^111401142 is an apocalyptic number.

111401142 is an abundant number, since it is smaller than the sum of its proper divisors (123127818).

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

111401142 is a wasteful number, since it uses less digits than its factorization.

111401142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977227.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 111401142 is about 10554.6739409609. The cubic root of 111401142 is about 481.1677902638.

Adding to 111401142 its reverse (241104111), we get a palindrome (352505253).

The spelling of 111401142 in words is "one hundred eleven million, four hundred one thousand, one hundred forty-two".