1301323144 has 16 divisors (see below), whose sum is σ = 2661797520. Its totient is φ = 591510480.

The previous prime is 1301323139. The next prime is 1301323159. The reversal of 1301323144 is 4413231031.

It is a super-2 number, since 2×1301323144² = 3386883850220089472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

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, 7393794 + ... + 7393969.

It is an arithmetic number, because the mean of its divisors is an integer number (166362345).

Almost surely, 2^1301323144 is an apocalyptic number.

It is an amenable number.

1301323144 is an abundant number, since it is smaller than the sum of its proper divisors (1360474376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1301323144 is a wasteful number, since it uses less digits than its factorization.

1301323144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14787780 (or 14787776 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1301323144 is about 36073.8567940829. The cubic root of 1301323144 is about 1091.7630318548.

Adding to 1301323144 its reverse (4413231031), we get a palindrome (5714554175).

The spelling of 1301323144 in words is "one billion, three hundred one million, three hundred twenty-three thousand, one hundred forty-four".