40123256297 has 2 divisors, whose sum is σ = 40123256298. Its totient is φ = 40123256296.

The previous prime is 40123256293. The next prime is 40123256317. The reversal of 40123256297 is 79265232104.

40123256297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35579013376 + 4544242921 = 188624^2 + 67411^2 .

It is a cyclic number.

It is not a de Polignac number, because 40123256297 - 2² = 40123256293 is a prime.

It is not a weakly prime, because it can be changed into another prime (40123256293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20061628148 + 20061628149.

It is an arithmetic number, because the mean of its divisors is an integer number (20061628149).

Almost surely, 2^40123256297 is an apocalyptic number.

It is an amenable number.

40123256297 is a deficient number, since it is larger than the sum of its proper divisors (1).

40123256297 is an equidigital number, since it uses as much as digits as its factorization.

40123256297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 40123256297 in words is "forty billion, one hundred twenty-three million, two hundred fifty-six thousand, two hundred ninety-seven".