1343213431 has 12 divisors (see below), whose sum is σ = 1576854840. Its totient is φ = 1140758640.

The previous prime is 1343213413. The next prime is 1343213437. The reversal of 1343213431 is 1343123431.

It is a de Polignac number, because none of the positive numbers 2^k-1343213431 is a prime.

It is a super-2 number, since 2×1343213431² = 3608444642437583522, 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 = 1343213396 and 1343213405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343213437) 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, 120405 + ... + 131086.

It is an arithmetic number, because the mean of its divisors is an integer number (131404570).

Almost surely, 2^1343213431 is an apocalyptic number.

1343213431 is a deficient number, since it is larger than the sum of its proper divisors (233641409).

1343213431 is a wasteful number, since it uses less digits than its factorization.

1343213431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251614 (or 251607 counting only the distinct ones).

The product of its digits is 2592, while the sum is 25.

The square root of 1343213431 is about 36649.8762753710. The cubic root of 1343213431 is about 1103.3543424064.

Adding to 1343213431 its reverse (1343123431), we get a palindrome (2686336862).

Subtracting from 1343213431 its reverse (1343123431), we obtain a square (90000 = 300²).

The spelling of 1343213431 in words is "one billion, three hundred forty-three million, two hundred thirteen thousand, four hundred thirty-one".