111451120001 has 16 divisors (see below), whose sum is σ = 126198537360. Its totient is φ = 97702053120.

The previous prime is 111451119979. The next prime is 111451120003. The reversal of 111451120001 is 100021154111.

It can be written as a sum of positive squares in 8 ways, for example, as 2434929025 + 109016190976 = 49345^2 + 330176^2 .

It is a cyclic number.

It is not a de Polignac number, because 111451120001 - 2²² = 111446925697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111451120003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2400170 + ... + 2446163.

It is an arithmetic number, because the mean of its divisors is an integer number (7887408585).

Almost surely, 2^111451120001 is an apocalyptic number.

It is an amenable number.

111451120001 is a deficient number, since it is larger than the sum of its proper divisors (14747417359).

111451120001 is a wasteful number, since it uses less digits than its factorization.

111451120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4846436.

The product of its (nonzero) digits is 40, while the sum is 17.

Adding to 111451120001 its reverse (100021154111), we get a palindrome (211472274112).

The spelling of 111451120001 in words is "one hundred eleven billion, four hundred fifty-one million, one hundred twenty thousand, one".