40303397903291 has 2 divisors, whose sum is σ = 40303397903292. Its totient is φ = 40303397903290.

The previous prime is 40303397903231. The next prime is 40303397903309. The reversal of 40303397903291 is 19230979330304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40303397903291 - 2³⁰ = 40302324161467 is a prime.

It is not a weakly prime, because it can be changed into another prime (40303397903231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20151698951645 + 20151698951646.

It is an arithmetic number, because the mean of its divisors is an integer number (20151698951646).

Almost surely, 2^{40303397903291} is an apocalyptic number.

40303397903291 is a deficient number, since it is larger than the sum of its proper divisors (1).

40303397903291 is an equidigital number, since it uses as much as digits as its factorization.

40303397903291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3306744, while the sum is 53.

The spelling of 40303397903291 in words is "forty trillion, three hundred three billion, three hundred ninety-seven million, nine hundred three thousand, two hundred ninety-one".