321231113 has 12 divisors (see below), whose sum is σ = 382369680. Its totient is φ = 268935912.

The previous prime is 321231103. The next prime is 321231137. The reversal of 321231113 is 311132123.

It is not a de Polignac number, because 321231113 - 2⁶ = 321231049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321231091 and 321231100.

It is not an unprimeable number, because it can be changed into a prime (321231103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74123 + ... + 78336.

It is an arithmetic number, because the mean of its divisors is an integer number (31864140).

Almost surely, 2^321231113 is an apocalyptic number.

It is an amenable number.

321231113 is a deficient number, since it is larger than the sum of its proper divisors (61138567).

321231113 is a wasteful number, since it uses less digits than its factorization.

321231113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152516 (or 152509 counting only the distinct ones).

The product of its digits is 108, while the sum is 17.

The square root of 321231113 is about 17922.9214415508. The cubic root of 321231113 is about 684.8664118701.

Adding to 321231113 its reverse (311132123), we get a palindrome (632363236).

The spelling of 321231113 in words is "three hundred twenty-one million, two hundred thirty-one thousand, one hundred thirteen".