1002434431 has 2 divisors, whose sum is σ = 1002434432. Its totient is φ = 1002434430.

The previous prime is 1002434423. The next prime is 1002434453. The reversal of 1002434431 is 1344342001.

It is an a-pointer prime, because the next prime (1002434453) can be obtained adding 1002434431 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1002434431 - 2³ = 1002434423 is a prime.

It is a super-2 number, since 2×1002434431² = 2009749576908587522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002434731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501217215 + 501217216.

It is an arithmetic number, because the mean of its divisors is an integer number (501217216).

Almost surely, 2^1002434431 is an apocalyptic number.

1002434431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002434431 is an equidigital number, since it uses as much as digits as its factorization.

1002434431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1002434431 is about 31661.2449376205. The cubic root of 1002434431 is about 1000.8108193942.

Adding to 1002434431 its reverse (1344342001), we get a palindrome (2346776432).

The spelling of 1002434431 in words is "one billion, two million, four hundred thirty-four thousand, four hundred thirty-one".