1312350620 has 24 divisors (see below), whose sum is σ = 3149641824. Its totient is φ = 449948736.

The previous prime is 1312350619. The next prime is 1312350623. The reversal of 1312350620 is 260532131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312350623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4686827 + ... + 4687106.

It is an arithmetic number, because the mean of its divisors is an integer number (131235076).

Almost surely, 2^1312350620 is an apocalyptic number.

1312350620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312350620 is an abundant number, since it is smaller than the sum of its proper divisors (1837291204).

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

1312350620 is a wasteful number, since it uses less digits than its factorization.

1312350620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9373949 (or 9373947 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1312350620 is about 36226.3801669446. The cubic root of 1312350620 is about 1094.8382460901.

Adding to 1312350620 its reverse (260532131), we get a palindrome (1572882751).

The spelling of 1312350620 in words is "one billion, three hundred twelve million, three hundred fifty thousand, six hundred twenty".