111302142 has 64 divisors (see below), whose sum is σ = 265428480. Its totient is φ = 30450816.

The previous prime is 111302123. The next prime is 111302153. The reversal of 111302142 is 241203111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103584 + ... + 104652.

It is an arithmetic number, because the mean of its divisors is an integer number (4147320).

Almost surely, 2^111302142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111302142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132714240).

111302142 is an abundant number, since it is smaller than the sum of its proper divisors (154126338).

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

111302142 is a wasteful number, since it uses less digits than its factorization.

111302142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185.

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

The square root of 111302142 is about 10549.9830331617. The cubic root of 111302142 is about 481.0252132420.

Adding to 111302142 its reverse (241203111), we get a palindrome (352505253).

It can be divided in two parts, 111 and 302142, that added together give a triangular number (302253 = T₇₇₇).

The spelling of 111302142 in words is "one hundred eleven million, three hundred two thousand, one hundred forty-two".