40401131297 has 2 divisors, whose sum is σ = 40401131298. Its totient is φ = 40401131296.

The previous prime is 40401131237. The next prime is 40401131317. The reversal of 40401131297 is 79213110404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34272746641 + 6128384656 = 185129^2 + 78284^2 .

It is a cyclic number.

It is not a de Polignac number, because 40401131297 - 2³² = 36106164001 is a prime.

It is not a weakly prime, because it can be changed into another prime (40401131237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20200565648 + 20200565649.

It is an arithmetic number, because the mean of its divisors is an integer number (20200565649).

Almost surely, 2^40401131297 is an apocalyptic number.

It is an amenable number.

40401131297 is a deficient number, since it is larger than the sum of its proper divisors (1).

40401131297 is an equidigital number, since it uses as much as digits as its factorization.

40401131297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The spelling of 40401131297 in words is "forty billion, four hundred one million, one hundred thirty-one thousand, two hundred ninety-seven".