1431113231 has 8 divisors (see below), whose sum is σ = 1508598000. Its totient is φ = 1353844800.

The previous prime is 1431113213. The next prime is 1431113237. The reversal of 1431113231 is 1323111341.

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-1431113231 is a prime.

It is a super-2 number, since 2×1431113231² = 4096170159886518722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431113237) 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, 40406 + ... + 67043.

It is an arithmetic number, because the mean of its divisors is an integer number (188574750).

Almost surely, 2^1431113231 is an apocalyptic number.

1431113231 is a deficient number, since it is larger than the sum of its proper divisors (77484769).

1431113231 is a wasteful number, since it uses less digits than its factorization.

1431113231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108169.

The product of its digits is 216, while the sum is 20.

The square root of 1431113231 is about 37830.0572428856. The cubic root of 1431113231 is about 1126.9154479137.

Adding to 1431113231 its reverse (1323111341), we get a palindrome (2754224572).

The spelling of 1431113231 in words is "one billion, four hundred thirty-one million, one hundred thirteen thousand, two hundred thirty-one".