1323000031320 has 160 divisors (see below), whose sum is σ = 4851000245520. Its totient is φ = 320727271680.

The previous prime is 1323000031319. The next prime is 1323000031337. The reversal of 1323000031320 is 231300003231.

1323000031320 is a `hidden beast` number, since 1 + 32 + 300 + 0 + 0 + 313 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1323000031293 and 1323000031302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18524967 + ... + 18596246.

Almost surely, 2^{1323000031320} is an apocalyptic number.

1323000031320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323000031320 is an abundant number, since it is smaller than the sum of its proper divisors (3528000214200).

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

1323000031320 is a wasteful number, since it uses less digits than its factorization.

1323000031320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37121247 (or 37121234 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 1323000031320 its reverse (231300003231), we get a palindrome (1554300034551).

The spelling of 1323000031320 in words is "one trillion, three hundred twenty-three billion, thirty-one thousand, three hundred twenty".