111142402102 has 8 divisors (see below), whose sum is σ = 166735710000. Its totient is φ = 55563832104.

The previous prime is 111142402097. The next prime is 111142402117. The reversal of 111142402102 is 201204241111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 111142402102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3665602 + ... + 3695797.

It is an arithmetic number, because the mean of its divisors is an integer number (20841963750).

Almost surely, 2^111142402102 is an apocalyptic number.

111142402102 is a deficient number, since it is larger than the sum of its proper divisors (55593307898).

111142402102 is an equidigital number, since it uses as much as digits as its factorization.

111142402102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7368950.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 111142402102 its reverse (201204241111), we get a palindrome (312346643213).

The spelling of 111142402102 in words is "one hundred eleven billion, one hundred forty-two million, four hundred two thousand, one hundred two".