111155101404401 has 8 divisors (see below), whose sum is σ = 111560688559080. Its totient is φ = 110750026680832.

The previous prime is 111155101404383. The next prime is 111155101404409. The reversal of 111155101404401 is 104404101551111.

It can be written as a sum of positive squares in 4 ways, for example, as 36650928108001 + 74504173296400 = 6054001^2 + 8631580^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111155101404401 - 2²² = 111155097210097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111155101404409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127673150 + ... + 128540823.

It is an arithmetic number, because the mean of its divisors is an integer number (13945086069885).

Almost surely, 2^{111155101404401} is an apocalyptic number.

It is an amenable number.

111155101404401 is a deficient number, since it is larger than the sum of its proper divisors (405587154679).

111155101404401 is a wasteful number, since it uses less digits than its factorization.

111155101404401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256215555.

The product of its (nonzero) digits is 1600, while the sum is 29.

Adding to 111155101404401 its reverse (104404101551111), we get a palindrome (215559202955512).

The spelling of 111155101404401 in words is "one hundred eleven trillion, one hundred fifty-five billion, one hundred one million, four hundred four thousand, four hundred one".