111234568890 has 32 divisors (see below), whose sum is σ = 266974658496. Its totient is φ = 29661252480.

The previous prime is 111234568889. The next prime is 111234568897. The reversal of 111234568890 is 98865432111.

It is a happy number.

It is a super-2 number, since 2×111234568890² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111234568897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 756969 + ... + 891891.

It is an arithmetic number, because the mean of its divisors is an integer number (8342958078).

Almost surely, 2^111234568890 is an apocalyptic number.

111234568890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111234568890 is an abundant number, since it is smaller than the sum of its proper divisors (155740089606).

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

111234568890 is a wasteful number, since it uses less digits than its factorization.

111234568890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162414.

The product of its (nonzero) digits is 414720, while the sum is 48.

The spelling of 111234568890 in words is "one hundred eleven billion, two hundred thirty-four million, five hundred sixty-eight thousand, eight hundred ninety".