112540040861 has 2 divisors, whose sum is σ = 112540040862. Its totient is φ = 112540040860.

The previous prime is 112540040857. The next prime is 112540040863. The reversal of 112540040861 is 168040045211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61149871225 + 51390169636 = 247285^2 + 226694^2 .

It is a cyclic number.

It is not a de Polignac number, because 112540040861 - 2² = 112540040857 is a prime.

Together with 112540040863, 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 (112540040863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56270020430 + 56270020431.

It is an arithmetic number, because the mean of its divisors is an integer number (56270020431).

Almost surely, 2^112540040861 is an apocalyptic number.

It is an amenable number.

112540040861 is a deficient number, since it is larger than the sum of its proper divisors (1).

112540040861 is an equidigital number, since it uses as much as digits as its factorization.

112540040861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 32.

The spelling of 112540040861 in words is "one hundred twelve billion, five hundred forty million, forty thousand, eight hundred sixty-one".