40401313231 has 8 divisors (see below), whose sum is σ = 40961258480. Its totient is φ = 39841543872.

The previous prime is 40401313219. The next prime is 40401313261. The reversal of 40401313231 is 13231310404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40401313231 - 2¹³ = 40401305039 is a prime.

It is a super-2 number, since 2×40401313231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40401313261) 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 7 ways as a sum of consecutive naturals, for example, 457996 + ... + 539038.

It is an arithmetic number, because the mean of its divisors is an integer number (5120157310).

Almost surely, 2^40401313231 is an apocalyptic number.

40401313231 is a deficient number, since it is larger than the sum of its proper divisors (559945249).

40401313231 is an equidigital number, since it uses as much as digits as its factorization.

40401313231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87945.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 40401313231 its reverse (13231310404), we get a palindrome (53632623635).

The spelling of 40401313231 in words is "forty billion, four hundred one million, three hundred thirteen thousand, two hundred thirty-one".