111011000051 has 24 divisors (see below), whose sum is σ = 131470189344. Its totient is φ = 91818881280.

The previous prime is 111011000029. The next prime is 111011000053. The reversal of 111011000051 is 150000110111.

It is a happy number.

It is not a de Polignac number, because 111011000051 - 2¹⁴ = 111010983667 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111010999996 and 111011000041.

It is not an unprimeable number, because it can be changed into a prime (111011000053) 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, 13023671 + ... + 13032191.

It is an arithmetic number, because the mean of its divisors is an integer number (5477924556).

Almost surely, 2^111011000051 is an apocalyptic number.

111011000051 is a deficient number, since it is larger than the sum of its proper divisors (20459189293).

111011000051 is an equidigital number, since it uses as much as digits as its factorization.

111011000051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10799 (or 10770 counting only the distinct ones).

The product of its (nonzero) digits is 5, while the sum is 11.

Adding to 111011000051 its reverse (150000110111), we get a palindrome (261011110162).

The spelling of 111011000051 in words is "one hundred eleven billion, eleven million, fifty-one", and thus it is an aban number.