1310321404 has 48 divisors (see below), whose sum is σ = 2702730240. Its totient is φ = 544104000.

The previous prime is 1310321387. The next prime is 1310321429. The reversal of 1310321404 is 4041230131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257517 + ... + 262555.

It is an arithmetic number, because the mean of its divisors is an integer number (56306880).

Almost surely, 2^1310321404 is an apocalyptic number.

1310321404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1310321404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1351365120).

1310321404 is an abundant number, since it is smaller than the sum of its proper divisors (1392408836).

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

1310321404 is a wasteful number, since it uses less digits than its factorization.

1310321404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5338 (or 5336 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1310321404 is about 36198.3618966384. The cubic root of 1310321404 is about 1094.2736588230.

Adding to 1310321404 its reverse (4041230131), we get a palindrome (5351551535).

The spelling of 1310321404 in words is "one billion, three hundred ten million, three hundred twenty-one thousand, four hundred four".