111402322981 has 2 divisors, whose sum is σ = 111402322982. Its totient is φ = 111402322980.

The previous prime is 111402322949. The next prime is 111402323041. The reversal of 111402322981 is 189223204111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91306708900 + 20095614081 = 302170^2 + 141759^2 .

It is a cyclic number.

It is not a de Polignac number, because 111402322981 - 2⁵ = 111402322949 is a prime.

It is a super-2 number, since 2×111402322981² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111402322181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55701161490 + 55701161491.

It is an arithmetic number, because the mean of its divisors is an integer number (55701161491).

Almost surely, 2^111402322981 is an apocalyptic number.

It is an amenable number.

111402322981 is a deficient number, since it is larger than the sum of its proper divisors (1).

111402322981 is an equidigital number, since it uses as much as digits as its factorization.

111402322981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 34.

The spelling of 111402322981 in words is "one hundred eleven billion, four hundred two million, three hundred twenty-two thousand, nine hundred eighty-one".