111201000001 has 32 divisors (see below), whose sum is σ = 143058198528. Its totient is φ = 84013554240.

The previous prime is 111200999963. The next prime is 111201000041. The reversal of 111201000001 is 100000102111.

It is not a de Polignac number, because 111201000001 - 2¹³ = 111200991809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is not an unprimeable number, because it can be changed into a prime (111201000041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1183336 + ... + 1273846.

It is an arithmetic number, because the mean of its divisors is an integer number (4470568704).

Almost surely, 2^111201000001 is an apocalyptic number.

It is an amenable number.

111201000001 is a deficient number, since it is larger than the sum of its proper divisors (31857198527).

111201000001 is a wasteful number, since it uses less digits than its factorization.

111201000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91141.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 111201000001 its reverse (100000102111), we get a palindrome (211201102112).

The spelling of 111201000001 in words is "one hundred eleven billion, two hundred one million, one", and thus it is an aban number.