1026263431 has 2 divisors, whose sum is σ = 1026263432. Its totient is φ = 1026263430.

The previous prime is 1026263389. The next prime is 1026263453. The reversal of 1026263431 is 1343626201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1026263431 is a prime.

It is a super-2 number, since 2×1026263431² = 2106433259615783522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1026263431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1026263731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513131715 + 513131716.

It is an arithmetic number, because the mean of its divisors is an integer number (513131716).

Almost surely, 2^1026263431 is an apocalyptic number.

1026263431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1026263431 is an equidigital number, since it uses as much as digits as its factorization.

1026263431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1026263431 is about 32035.3465877927. The cubic root of 1026263431 is about 1008.6789351738.

Adding to 1026263431 its reverse (1343626201), we get a palindrome (2369889632).

The spelling of 1026263431 in words is "one billion, twenty-six million, two hundred sixty-three thousand, four hundred thirty-one".