111330400061 has 2 divisors, whose sum is σ = 111330400062. Its totient is φ = 111330400060.

The previous prime is 111330400039. The next prime is 111330400063. The reversal of 111330400061 is 160004033111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109448488900 + 1881911161 = 330830^2 + 43381^2 .

It is a cyclic number.

It is not a de Polignac number, because 111330400061 - 2²⁶ = 111263291197 is a prime.

Together with 111330400063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111330400063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55665200030 + 55665200031.

It is an arithmetic number, because the mean of its divisors is an integer number (55665200031).

Almost surely, 2^111330400061 is an apocalyptic number.

It is an amenable number.

111330400061 is a deficient number, since it is larger than the sum of its proper divisors (1).

111330400061 is an equidigital number, since it uses as much as digits as its factorization.

111330400061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 111330400061 its reverse (160004033111), we get a palindrome (271334433172).

The spelling of 111330400061 in words is "one hundred eleven billion, three hundred thirty million, four hundred thousand, sixty-one".