111202431023401 has 2 divisors, whose sum is σ = 111202431023402. Its totient is φ = 111202431023400.

The previous prime is 111202431023363. The next prime is 111202431023477. The reversal of 111202431023401 is 104320134202111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71023009075225 + 40179421948176 = 8427515^2 + 6338724^2 .

It is a cyclic number.

It is not a de Polignac number, because 111202431023401 - 2⁴⁵ = 76018058934569 is a prime.

It is not a weakly prime, because it can be changed into another prime (111202431021401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55601215511700 + 55601215511701.

It is an arithmetic number, because the mean of its divisors is an integer number (55601215511701).

Almost surely, 2^{111202431023401} is an apocalyptic number.

It is an amenable number.

111202431023401 is a deficient number, since it is larger than the sum of its proper divisors (1).

111202431023401 is an equidigital number, since it uses as much as digits as its factorization.

111202431023401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 111202431023401 its reverse (104320134202111), we get a palindrome (215522565225512).

The spelling of 111202431023401 in words is "one hundred eleven trillion, two hundred two billion, four hundred thirty-one million, twenty-three thousand, four hundred one".