111200401002001 has 4 divisors (see below), whose sum is σ = 111220876131904. Its totient is φ = 111179925872100.

The previous prime is 111200401001969. The next prime is 111200401002161. The reversal of 111200401002001 is 100200104002111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111200401002001 - 2⁵ = 111200401001969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111200401002601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10237556805 + ... + 10237567666.

It is an arithmetic number, because the mean of its divisors is an integer number (27805219032976).

Almost surely, 2^{111200401002001} is an apocalyptic number.

It is an amenable number.

111200401002001 is a deficient number, since it is larger than the sum of its proper divisors (20475129903).

111200401002001 is an equidigital number, since it uses as much as digits as its factorization.

111200401002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20475129902.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111200401002001 its reverse (100200104002111), we get a palindrome (211400505004112).

The spelling of 111200401002001 in words is "one hundred eleven trillion, two hundred billion, four hundred one million, two thousand, one".