1343021131 has 4 divisors (see below), whose sum is σ = 1422022392. Its totient is φ = 1264019872.

The previous prime is 1343021111. The next prime is 1343021167. The reversal of 1343021131 is 1311203431.

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

It is a cyclic number.

It is not a de Polignac number, because 1343021131 - 2⁷ = 1343021003 is a prime.

It is a super-2 number, since 2×1343021131² = 3607411516625038322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1343021099 and 1343021108.

It is not an unprimeable number, because it can be changed into a prime (1343021101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39500605 + ... + 39500638.

It is an arithmetic number, because the mean of its divisors is an integer number (355505598).

Almost surely, 2^1343021131 is an apocalyptic number.

1343021131 is a deficient number, since it is larger than the sum of its proper divisors (79001261).

1343021131 is an equidigital number, since it uses as much as digits as its factorization.

1343021131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79001260.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1343021131 is about 36647.2527073995. The cubic root of 1343021131 is about 1103.3016863005.

Adding to 1343021131 its reverse (1311203431), we get a palindrome (2654224562).

The spelling of 1343021131 in words is "one billion, three hundred forty-three million, twenty-one thousand, one hundred thirty-one".