1040111042431 has 2 divisors, whose sum is σ = 1040111042432. Its totient is φ = 1040111042430.

The previous prime is 1040111042429. The next prime is 1040111042459. The reversal of 1040111042431 is 1342401110401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1040111042431 - 2¹ = 1040111042429 is a prime.

It is a super-2 number, since 2×1040111042431² (a number of 25 digits) contains 22 as substring.

Together with 1040111042429, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040111042461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520055521215 + 520055521216.

It is an arithmetic number, because the mean of its divisors is an integer number (520055521216).

Almost surely, 2^{1040111042431} is an apocalyptic number.

1040111042431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040111042431 is an equidigital number, since it uses as much as digits as its factorization.

1040111042431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 1040111042431 its reverse (1342401110401), we get a palindrome (2382512152832).

The spelling of 1040111042431 in words is "one trillion, forty billion, one hundred eleven million, forty-two thousand, four hundred thirty-one".