1142204265431 has 2 divisors, whose sum is σ = 1142204265432. Its totient is φ = 1142204265430.

The previous prime is 1142204265427. The next prime is 1142204265457. The reversal of 1142204265431 is 1345624022411.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1142204265431 - 2² = 1142204265427 is a prime.

It is a super-2 number, since 2×1142204265431² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1142204265391 and 1142204265400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142204265401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571102132715 + 571102132716.

It is an arithmetic number, because the mean of its divisors is an integer number (571102132716).

Almost surely, 2^{1142204265431} is an apocalyptic number.

1142204265431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142204265431 is an equidigital number, since it uses as much as digits as its factorization.

1142204265431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 35.

Adding to 1142204265431 its reverse (1345624022411), we get a palindrome (2487828287842).

The spelling of 1142204265431 in words is "one trillion, one hundred forty-two billion, two hundred four million, two hundred sixty-five thousand, four hundred thirty-one".