40310077121 has 2 divisors, whose sum is σ = 40310077122. Its totient is φ = 40310077120.

The previous prime is 40310077117. The next prime is 40310077123. The reversal of 40310077121 is 12177001304.

It is a happy number.

40310077121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24918201025 + 15391876096 = 157855^2 + 124064^2 .

It is a cyclic number.

It is not a de Polignac number, because 40310077121 - 2² = 40310077117 is a prime.

It is a Sophie Germain prime.

Together with 40310077123, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40310077123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20155038560 + 20155038561.

It is an arithmetic number, because the mean of its divisors is an integer number (20155038561).

Almost surely, 2^40310077121 is an apocalyptic number.

It is an amenable number.

40310077121 is a deficient number, since it is larger than the sum of its proper divisors (1).

40310077121 is an equidigital number, since it uses as much as digits as its factorization.

40310077121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 26.

Adding to 40310077121 its reverse (12177001304), we get a palindrome (52487078425).

The spelling of 40310077121 in words is "forty billion, three hundred ten million, seventy-seven thousand, one hundred twenty-one".