111520035461 has 2 divisors, whose sum is σ = 111520035462. Its totient is φ = 111520035460.

The previous prime is 111520035457. The next prime is 111520035463. The reversal of 111520035461 is 164530025111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72082047361 + 39437988100 = 268481^2 + 198590^2 .

It is an emirp because it is prime and its reverse (164530025111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111520035461 - 2² = 111520035457 is a prime.

Together with 111520035463, 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 (111520035463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55760017730 + 55760017731.

It is an arithmetic number, because the mean of its divisors is an integer number (55760017731).

Almost surely, 2^111520035461 is an apocalyptic number.

It is an amenable number.

111520035461 is a deficient number, since it is larger than the sum of its proper divisors (1).

111520035461 is an equidigital number, since it uses as much as digits as its factorization.

111520035461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 111520035461 in words is "one hundred eleven billion, five hundred twenty million, thirty-five thousand, four hundred sixty-one".