1234343431 has 2 divisors, whose sum is σ = 1234343432. Its totient is φ = 1234343430.

The previous prime is 1234343419. The next prime is 1234343441. The reversal of 1234343431 is 1343434321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1234343431 - 2¹³ = 1234335239 is a prime.

It is a super-2 number, since 2×1234343431² = 3047207411305703522, 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 1234343431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1234343401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617171715 + 617171716.

It is an arithmetic number, because the mean of its divisors is an integer number (617171716).

Almost surely, 2^1234343431 is an apocalyptic number.

1234343431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234343431 is an equidigital number, since it uses as much as digits as its factorization.

1234343431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 28.

The square root of 1234343431 is about 35133.2240336693. The cubic root of 1234343431 is about 1072.7009618657.

Adding to 1234343431 its reverse (1343434321), we get a palindrome (2577777752).

It can be divided in two parts, 1 and 234343431, that added together give a palindrome (234343432).

The spelling of 1234343431 in words is "one billion, two hundred thirty-four million, three hundred forty-three thousand, four hundred thirty-one".