1040431023131 has 4 divisors (see below), whose sum is σ = 1049638377432. Its totient is φ = 1031223668832.

The previous prime is 1040431023103. The next prime is 1040431023167. The reversal of 1040431023131 is 1313201340401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1040431023131 - 2⁶ = 1040431023067 is a prime.

It is a super-2 number, since 2×1040431023131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1040431023097 and 1040431023106.

It is not an unprimeable number, because it can be changed into a prime (1040431025131) 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 3 ways as a sum of consecutive naturals, for example, 4603676981 + ... + 4603677206.

It is an arithmetic number, because the mean of its divisors is an integer number (262409594358).

Almost surely, 2^{1040431023131} is an apocalyptic number.

1040431023131 is a deficient number, since it is larger than the sum of its proper divisors (9207354301).

1040431023131 is an equidigital number, since it uses as much as digits as its factorization.

1040431023131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9207354300.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1040431023131 its reverse (1313201340401), we get a palindrome (2353632363532).

The spelling of 1040431023131 in words is "one trillion, forty billion, four hundred thirty-one million, twenty-three thousand, one hundred thirty-one".