1231343404 has 12 divisors (see below), whose sum is σ = 2155101928. Its totient is φ = 615600000.

The previous prime is 1231343369. The next prime is 1231343413. The reversal of 1231343404 is 4043431321.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46204 + ... + 67804.

Almost surely, 2^1231343404 is an apocalyptic number.

It is an amenable number.

1231343404 is a deficient number, since it is larger than the sum of its proper divisors (923758524).

1231343404 is a wasteful number, since it uses less digits than its factorization.

1231343404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35856 (or 35854 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1231343404 is about 35090.5030456960. The cubic root of 1231343404 is about 1071.8312032345.

Adding to 1231343404 its reverse (4043431321), we get a palindrome (5274774725).

The spelling of 1231343404 in words is "one billion, two hundred thirty-one million, three hundred forty-three thousand, four hundred four".