1343178923 has 4 divisors (see below), whose sum is σ = 1362097008. Its totient is φ = 1324260840.

The previous prime is 1343178919. The next prime is 1343178937. The reversal of 1343178923 is 3298713431.

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 1343178923 - 2² = 1343178919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1343178223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9458936 + ... + 9459077.

It is an arithmetic number, because the mean of its divisors is an integer number (340524252).

Almost surely, 2^1343178923 is an apocalyptic number.

1343178923 is a deficient number, since it is larger than the sum of its proper divisors (18918085).

1343178923 is an equidigital number, since it uses as much as digits as its factorization.

1343178923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18918084.

The product of its digits is 108864, while the sum is 41.

The square root of 1343178923 is about 36649.4054931318. The cubic root of 1343178923 is about 1103.3448937026.

The spelling of 1343178923 in words is "one billion, three hundred forty-three million, one hundred seventy-eight thousand, nine hundred twenty-three".