111332343977 has 2 divisors, whose sum is σ = 111332343978. Its totient is φ = 111332343976.

The previous prime is 111332343971. The next prime is 111332344037. The reversal of 111332343977 is 779343233111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78521006656 + 32811337321 = 280216^2 + 181139^2 .

It is an emirp because it is prime and its reverse (779343233111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111332343977 - 2²⁰ = 111331295401 is a prime.

It is not a weakly prime, because it can be changed into another prime (111332343971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55666171988 + 55666171989.

It is an arithmetic number, because the mean of its divisors is an integer number (55666171989).

Almost surely, 2^111332343977 is an apocalyptic number.

It is an amenable number.

111332343977 is a deficient number, since it is larger than the sum of its proper divisors (1).

111332343977 is an equidigital number, since it uses as much as digits as its factorization.

111332343977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 44.

The spelling of 111332343977 in words is "one hundred eleven billion, three hundred thirty-two million, three hundred forty-three thousand, nine hundred seventy-seven".