111230055690 has 48 divisors (see below), whose sum is σ = 289066524768. Its totient is φ = 27379704768.

The previous prime is 111230055653. The next prime is 111230055691. The reversal of 111230055690 is 96550032111.

It is a super-2 number, since 2×111230055690² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111230055691) 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, 10964364 + ... + 10974503.

It is an arithmetic number, because the mean of its divisors is an integer number (6022219266).

Almost surely, 2^111230055690 is an apocalyptic number.

111230055690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111230055690 is an abundant number, since it is smaller than the sum of its proper divisors (177836469078).

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

111230055690 is a wasteful number, since it uses less digits than its factorization.

111230055690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21938903 (or 21938890 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 33.

The spelling of 111230055690 in words is "one hundred eleven billion, two hundred thirty million, fifty-five thousand, six hundred ninety".