1313123132 has 24 divisors (see below), whose sum is σ = 2410702560. Its totient is φ = 624989120.

The previous prime is 1313123087. The next prime is 1313123159. The reversal of 1313123132 is 2313213131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71483 + ... + 87954.

It is an arithmetic number, because the mean of its divisors is an integer number (100445940).

Almost surely, 2^1313123132 is an apocalyptic number.

It is an amenable number.

1313123132 is a deficient number, since it is larger than the sum of its proper divisors (1097579428).

1313123132 is a wasteful number, since it uses less digits than its factorization.

1313123132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159541 (or 159539 counting only the distinct ones).

The product of its digits is 324, while the sum is 20.

The square root of 1313123132 is about 36237.0408836042. The cubic root of 1313123132 is about 1095.0530285753.

Adding to 1313123132 its reverse (2313213131), we get a palindrome (3626336263).

It can be divided in two parts, 13131 and 23132, that added together give a palindrome (36263).

The spelling of 1313123132 in words is "one billion, three hundred thirteen million, one hundred twenty-three thousand, one hundred thirty-two".