1231113323 has 8 divisors (see below), whose sum is σ = 1386356736. Its totient is φ = 1083090600.

The previous prime is 1231113283. The next prime is 1231113329. The reversal of 1231113323 is 3233111321.

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

It is a cyclic number.

It is not a de Polignac number, because 1231113323 - 2¹² = 1231109227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1231113295 and 1231113304.

It is not an unprimeable number, because it can be changed into a prime (1231113329) 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, 1804811 + ... + 1805492.

It is an arithmetic number, because the mean of its divisors is an integer number (173294592).

Almost surely, 2^1231113323 is an apocalyptic number.

1231113323 is a deficient number, since it is larger than the sum of its proper divisors (155243413).

1231113323 is a wasteful number, since it uses less digits than its factorization.

1231113323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3610345.

The product of its digits is 324, while the sum is 20.

The square root of 1231113323 is about 35087.2244983840. The cubic root of 1231113323 is about 1071.7644405546.

Adding to 1231113323 its reverse (3233111321), we get a palindrome (4464224644).

The spelling of 1231113323 in words is "one billion, two hundred thirty-one million, one hundred thirteen thousand, three hundred twenty-three".