1000031321120 has 48 divisors (see below), whose sum is σ = 2544310462680. Its totient is φ = 369242333184.

The previous prime is 1000031321083. The next prime is 1000031321137. The reversal of 1000031321120 is 211231300001.

It can be written as a sum of positive squares in 4 ways, for example, as 801332909584 + 198698411536 = 895172^2 + 445756^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1000031321095 and 1000031321104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240390065 + ... + 240394224.

Almost surely, 2^{1000031321120} is an apocalyptic number.

1000031321120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000031321120 is an abundant number, since it is smaller than the sum of its proper divisors (1544279141560).

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

1000031321120 is a wasteful number, since it uses less digits than its factorization.

1000031321120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480784317 (or 480784309 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 1000031321120 its reverse (211231300001), we get a palindrome (1211262621121).

The spelling of 1000031321120 in words is "one trillion, thirty-one million, three hundred twenty-one thousand, one hundred twenty".