1000313331320 has 64 divisors (see below), whose sum is σ = 2293520857920. Its totient is φ = 392515928064.

The previous prime is 1000313331233. The next prime is 1000313331377. The reversal of 1000313331320 is 231333130001.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1000313331292 and 1000313331301.

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, 15437309 + ... + 15501971.

It is an arithmetic number, because the mean of its divisors is an integer number (35836263405).

Almost surely, 2^{1000313331320} is an apocalyptic number.

1000313331320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000313331320 is an abundant number, since it is smaller than the sum of its proper divisors (1293207526600).

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

1000313331320 is a wasteful number, since it uses less digits than its factorization.

1000313331320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72024 (or 72020 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 1000313331320 its reverse (231333130001), we get a palindrome (1231646461321).

The spelling of 1000313331320 in words is "one trillion, three hundred thirteen million, three hundred thirty-one thousand, three hundred twenty".