111056551001 has 16 divisors (see below), whose sum is σ = 121890106368. Its totient is φ = 100346812800.

The previous prime is 111056550971. The next prime is 111056551003. The reversal of 111056551001 is 100155650111.

It is a cyclic number.

It is not a de Polignac number, because 111056551001 - 2¹⁸ = 111056288857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111056551003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2526725 + ... + 2570301.

It is an arithmetic number, because the mean of its divisors is an integer number (7618131648).

Almost surely, 2^111056551001 is an apocalyptic number.

111056551001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111056551001 is a deficient number, since it is larger than the sum of its proper divisors (10833555367).

111056551001 is a wasteful number, since it uses less digits than its factorization.

111056551001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44992.

The product of its (nonzero) digits is 750, while the sum is 26.

The spelling of 111056551001 in words is "one hundred eleven billion, fifty-six million, five hundred fifty-one thousand, one".