1343123031 has 4 divisors (see below), whose sum is σ = 1790830712. Its totient is φ = 895415352.

The previous prime is 1343123011. The next prime is 1343123069. The reversal of 1343123031 is 1303213431.

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

It is not a de Polignac number, because 1343123031 - 2⁶ = 1343122967 is a prime.

It is a super-2 number, since 2×1343123031² = 3607958952805253922, 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 = 1343122989 and 1343123007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343123011) 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, 223853836 + ... + 223853841.

It is an arithmetic number, because the mean of its divisors is an integer number (447707678).

Almost surely, 2^1343123031 is an apocalyptic number.

1343123031 is a deficient number, since it is larger than the sum of its proper divisors (447707681).

1343123031 is an equidigital number, since it uses as much as digits as its factorization.

1343123031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447707680.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1343123031 is about 36648.6429625982. The cubic root of 1343123031 is about 1103.3295894600.

Adding to 1343123031 its reverse (1303213431), we get a palindrome (2646336462).

The spelling of 1343123031 in words is "one billion, three hundred forty-three million, one hundred twenty-three thousand, thirty-one".