1344623131 has 4 divisors (see below), whose sum is σ = 1349622000. Its totient is φ = 1339624264.

The previous prime is 1344623129. The next prime is 1344623149. The reversal of 1344623131 is 1313264431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1313264431 = 163 ⋅8056837.

It is a cyclic number.

It is not a de Polignac number, because 1344623131 - 2¹ = 1344623129 is a prime.

It is a super-2 number, since 2×1344623131² = 3616022728840486322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1344623131.

It is not an unprimeable number, because it can be changed into a prime (1344623101) 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, 2499031 + ... + 2499568.

It is an arithmetic number, because the mean of its divisors is an integer number (337405500).

Almost surely, 2^1344623131 is an apocalyptic number.

1344623131 is a deficient number, since it is larger than the sum of its proper divisors (4998869).

1344623131 is an equidigital number, since it uses as much as digits as its factorization.

1344623131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4998868.

The product of its digits is 5184, while the sum is 28.

The square root of 1344623131 is about 36669.1032205589. The cubic root of 1344623131 is about 1103.7401968975.

Adding to 1344623131 its reverse (1313264431), we get a palindrome (2657887562).

The spelling of 1344623131 in words is "one billion, three hundred forty-four million, six hundred twenty-three thousand, one hundred thirty-one".