1343121331 has 8 divisors (see below), whose sum is σ = 1361849328. Its totient is φ = 1324500000.

The previous prime is 1343121319. The next prime is 1343121347. The reversal of 1343121331 is 1331213431.

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 1343121331 - 2¹⁵ = 1343088563 is a prime.

It is a super-2 number, since 2×1343121331² = 3607949819574423122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1343121301) 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, 1140 + ... + 51841.

It is an arithmetic number, because the mean of its divisors is an integer number (170231166).

Almost surely, 2^1343121331 is an apocalyptic number.

1343121331 is a deficient number, since it is larger than the sum of its proper divisors (18727997).

1343121331 is a wasteful number, since it uses less digits than its factorization.

1343121331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53333.

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

The square root of 1343121331 is about 36648.6197693719. The cubic root of 1343121331 is about 1103.3291239626.

Adding to 1343121331 its reverse (1331213431), we get a palindrome (2674334762).

The spelling of 1343121331 in words is "one billion, three hundred forty-three million, one hundred twenty-one thousand, three hundred thirty-one".