111203142 has 16 divisors (see below), whose sum is σ = 223637232. Its totient is φ = 36862560.

The previous prime is 111203123. The next prime is 111203173. The reversal of 111203142 is 241302111.

It is a super-2 number, since 2×111203142² = 24732277581344328, which contains 22 as substring.

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, 50113 + ... + 52284.

It is an arithmetic number, because the mean of its divisors is an integer number (13977327).

Almost surely, 2^111203142 is an apocalyptic number.

111203142 is an abundant number, since it is smaller than the sum of its proper divisors (112434090).

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

111203142 is a wasteful number, since it uses less digits than its factorization.

111203142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102583.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 111203142 is about 10545.2900386855. The cubic root of 111203142 is about 480.8825516497.

Adding to 111203142 its reverse (241302111), we get a palindrome (352505253).

The spelling of 111203142 in words is "one hundred eleven million, two hundred three thousand, one hundred forty-two".