1312203023320 has 64 divisors (see below), whose sum is σ = 3376334606400. Its totient is φ = 449618411520.

The previous prime is 1312203023309. The next prime is 1312203023357. The reversal of 1312203023320 is 233203022131.

It is a junction number, because it is equal to n+sod(n) for n = 1312203023291 and 1312203023300.

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, 1005801 + ... + 1906840.

It is an arithmetic number, because the mean of its divisors is an integer number (52755228225).

Almost surely, 2^{1312203023320} is an apocalyptic number.

1312203023320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312203023320 is an abundant number, since it is smaller than the sum of its proper divisors (2064131583080).

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

1312203023320 is a wasteful number, since it uses less digits than its factorization.

1312203023320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2914268 (or 2914264 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 1312203023320 its reverse (233203022131), we get a palindrome (1545406045451).

The spelling of 1312203023320 in words is "one trillion, three hundred twelve billion, two hundred three million, twenty-three thousand, three hundred twenty".