40313111231 has 2 divisors, whose sum is σ = 40313111232. Its totient is φ = 40313111230.

The previous prime is 40313111197. The next prime is 40313111269. The reversal of 40313111231 is 13211131304.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40313111231 - 2¹⁴ = 40313094847 is a prime.

It is a super-2 number, since 2×40313111231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40313111131) 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 as a sum of consecutive naturals, namely, 20156555615 + 20156555616.

It is an arithmetic number, because the mean of its divisors is an integer number (20156555616).

Almost surely, 2^40313111231 is an apocalyptic number.

40313111231 is a deficient number, since it is larger than the sum of its proper divisors (1).

40313111231 is an equidigital number, since it uses as much as digits as its factorization.

40313111231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 40313111231 its reverse (13211131304), we get a palindrome (53524242535).

The spelling of 40313111231 in words is "forty billion, three hundred thirteen million, one hundred eleven thousand, two hundred thirty-one".