111051142 has 4 divisors (see below), whose sum is σ = 166576716. Its totient is φ = 55525570.

The previous prime is 111051137. The next prime is 111051163. The reversal of 111051142 is 241150111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241150111 = 4073 ⋅59207.

It is a super-2 number, since 2×111051142² = 24664712279008328, 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 as a sum of consecutive naturals, namely, 27762784 + ... + 27762787.

It is an arithmetic number, because the mean of its divisors is an integer number (41644179).

Almost surely, 2^111051142 is an apocalyptic number.

111051142 is a deficient number, since it is larger than the sum of its proper divisors (55525574).

111051142 is an equidigital number, since it uses as much as digits as its factorization.

111051142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55525573.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 111051142 is about 10538.0805652642. The cubic root of 111051142 is about 480.6633507795.

The spelling of 111051142 in words is "one hundred eleven million, fifty-one thousand, one hundred forty-two".