1213314331 has 16 divisors (see below), whose sum is σ = 1338393600. Its totient is φ = 1094784768.

The previous prime is 1213314283. The next prime is 1213314337. The reversal of 1213314331 is 1334133121.

It is a cyclic number.

It is not a de Polignac number, because 1213314331 - 2¹¹ = 1213312283 is a prime.

It is a super-2 number, since 2×1213314331² = 2944263331619955122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213314337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98635 + ... + 110251.

It is an arithmetic number, because the mean of its divisors is an integer number (83649600).

Almost surely, 2^1213314331 is an apocalyptic number.

1213314331 is a deficient number, since it is larger than the sum of its proper divisors (125079269).

1213314331 is a wasteful number, since it uses less digits than its factorization.

1213314331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11898.

The product of its digits is 648, while the sum is 22.

The square root of 1213314331 is about 34832.6618420126. The cubic root of 1213314331 is about 1066.5742860207.

Adding to 1213314331 its reverse (1334133121), we get a palindrome (2547447452).

The spelling of 1213314331 in words is "one billion, two hundred thirteen million, three hundred fourteen thousand, three hundred thirty-one".