1003231213320 has 128 divisors (see below), whose sum is σ = 3462429450240. Its totient is φ = 227791353600.

The previous prime is 1003231213273. The next prime is 1003231213331. The reversal of 1003231213320 is 233121323001.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3827872 + ... + 4081551.

It is an arithmetic number, because the mean of its divisors is an integer number (27050230080).

Almost surely, 2^{1003231213320} is an apocalyptic number.

1003231213320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1003231213320 is an abundant number, since it is smaller than the sum of its proper divisors (2459198236920).

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

1003231213320 is a wasteful number, since it uses less digits than its factorization.

1003231213320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7909595 (or 7909591 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1003231213320 its reverse (233121323001), we get a palindrome (1236352536321).

The spelling of 1003231213320 in words is "one trillion, three billion, two hundred thirty-one million, two hundred thirteen thousand, three hundred twenty".