1231434326 has 8 divisors (see below), whose sum is σ = 1854816744. Its totient is φ = 613162080.

The previous prime is 1231434313. The next prime is 1231434331. The reversal of 1231434326 is 6234341321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 1276940 + ... + 1277903.

It is an arithmetic number, because the mean of its divisors is an integer number (231852093).

Almost surely, 2^1231434326 is an apocalyptic number.

1231434326 is a deficient number, since it is larger than the sum of its proper divisors (623382418).

1231434326 is a wasteful number, since it uses less digits than its factorization.

1231434326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555086.

The product of its digits is 10368, while the sum is 29.

The square root of 1231434326 is about 35091.7985574977. The cubic root of 1231434326 is about 1071.8575838087.

Adding to 1231434326 its reverse (6234341321), we get a palindrome (7465775647).

The spelling of 1231434326 in words is "one billion, two hundred thirty-one million, four hundred thirty-four thousand, three hundred twenty-six".