111202140051 has 24 divisors (see below), whose sum is σ = 163055998560. Its totient is φ = 73015779456.

The previous prime is 111202139989. The next prime is 111202140089. The reversal of 111202140051 is 150041202111.

111202140051 is a `hidden beast` number, since 1 + 11 + 202 + 1 + 400 + 51 = 666.

It is not a de Polignac number, because 111202140051 - 2⁹ = 111202139539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111202140551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 346450 + ... + 585176.

It is an arithmetic number, because the mean of its divisors is an integer number (6793999940).

Almost surely, 2^111202140051 is an apocalyptic number.

111202140051 is a deficient number, since it is larger than the sum of its proper divisors (51853858509).

111202140051 is a wasteful number, since it uses less digits than its factorization.

111202140051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239515 (or 239512 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

Adding to 111202140051 its reverse (150041202111), we get a palindrome (261243342162).

The spelling of 111202140051 in words is "one hundred eleven billion, two hundred two million, one hundred forty thousand, fifty-one".