111311311302401 has 4 divisors (see below), whose sum is σ = 127212927202752. Its totient is φ = 95409695402052.

The previous prime is 111311311302379. The next prime is 111311311302409. The reversal of 111311311302401 is 104203113113111.

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 111311311302401 - 2²⁶ = 111311244193537 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 (111311311302409) 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, 7950807950165 + ... + 7950807950178.

It is an arithmetic number, because the mean of its divisors is an integer number (31803231800688).

Almost surely, 2^{111311311302401} is an apocalyptic number.

It is an amenable number.

111311311302401 is a deficient number, since it is larger than the sum of its proper divisors (15901615900351).

111311311302401 is an equidigital number, since it uses as much as digits as its factorization.

111311311302401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15901615900350.

The product of its (nonzero) digits is 216, while the sum is 23.

Adding to 111311311302401 its reverse (104203113113111), we get a palindrome (215514424415512).

The spelling of 111311311302401 in words is "one hundred eleven trillion, three hundred eleven billion, three hundred eleven million, three hundred two thousand, four hundred one".