1314213231 has 4 divisors (see below), whose sum is σ = 1752284312. Its totient is φ = 876142152.

The previous prime is 1314213209. The next prime is 1314213239. The reversal of 1314213231 is 1323124131.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1314213231 - 2²⁷ = 1179995503 is a prime.

It is a super-2 number, since 2×1314213231² = 3454312833070918722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1314213198 and 1314213207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1314213239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219035536 + ... + 219035541.

It is an arithmetic number, because the mean of its divisors is an integer number (438071078).

Almost surely, 2^1314213231 is an apocalyptic number.

1314213231 is a deficient number, since it is larger than the sum of its proper divisors (438071081).

1314213231 is an equidigital number, since it uses as much as digits as its factorization.

1314213231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438071080.

The product of its digits is 432, while the sum is 21.

The square root of 1314213231 is about 36252.0789886594. The cubic root of 1314213231 is about 1095.3559669188.

Adding to 1314213231 its reverse (1323124131), we get a palindrome (2637337362).

The spelling of 1314213231 in words is "one billion, three hundred fourteen million, two hundred thirteen thousand, two hundred thirty-one".