1203320322312 has 16 divisors (see below), whose sum is σ = 3008300805840. Its totient is φ = 401106774096.

The previous prime is 1203320322283. The next prime is 1203320322319. The reversal of 1203320322312 is 2132230233021.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 50138346763 = 1203320322312 / (1 + 2 + 0 + 3 + 3 + 2 + 0 + 3 + 2 + 2 + 3 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (1203320322319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25069173358 + ... + 25069173405.

It is an arithmetic number, because the mean of its divisors is an integer number (188018800365).

Almost surely, 2^{1203320322312} is an apocalyptic number.

1203320322312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1203320322312 is an abundant number, since it is smaller than the sum of its proper divisors (1804980483528).

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

1203320322312 is a wasteful number, since it uses less digits than its factorization.

1203320322312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50138346772 (or 50138346768 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 1203320322312 its reverse (2132230233021), we get a palindrome (3335550555333).

The spelling of 1203320322312 in words is "one trillion, two hundred three billion, three hundred twenty million, three hundred twenty-two thousand, three hundred twelve".