40001302431 has 12 divisors (see below), whose sum is σ = 58571162208. Its totient is φ = 26302225824.

The previous prime is 40001302423. The next prime is 40001302457. The reversal of 40001302431 is 13420310004.

It is not a de Polignac number, because 40001302431 - 2³ = 40001302423 is a prime.

It is a super-2 number, since 2×40001302431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40001302331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30441735 + ... + 30443048.

It is an arithmetic number, because the mean of its divisors is an integer number (4880930184).

Almost surely, 2^40001302431 is an apocalyptic number.

40001302431 is a deficient number, since it is larger than the sum of its proper divisors (18569859777).

40001302431 is a wasteful number, since it uses less digits than its factorization.

40001302431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60884862 (or 60884859 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 40001302431 its reverse (13420310004), we get a palindrome (53421612435).

The spelling of 40001302431 in words is "forty billion, one million, three hundred two thousand, four hundred thirty-one".