1231423411 has 8 divisors (see below), whose sum is σ = 1244374704. Its totient is φ = 1218487200.

The previous prime is 1231423399. The next prime is 1231423423. The reversal of 1231423411 is 1143241321.

It is an interprime number because it is at equal distance from previous prime (1231423399) and next prime (1231423423).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1231423411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231423111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243636 + ... + 248638.

It is an arithmetic number, because the mean of its divisors is an integer number (155546838).

Almost surely, 2^1231423411 is an apocalyptic number.

1231423411 is a deficient number, since it is larger than the sum of its proper divisors (12951293).

1231423411 is a wasteful number, since it uses less digits than its factorization.

1231423411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7541.

The product of its digits is 576, while the sum is 22.

The square root of 1231423411 is about 35091.6430364838. The cubic root of 1231423411 is about 1071.8544169433.

Adding to 1231423411 its reverse (1143241321), we get a palindrome (2374664732).

The spelling of 1231423411 in words is "one billion, two hundred thirty-one million, four hundred twenty-three thousand, four hundred eleven".