1000122031320 has 64 divisors (see below), whose sum is σ = 3027892428000. Its totient is φ = 264252423168.

The previous prime is 1000122031309. The next prime is 1000122031343. The reversal of 1000122031320 is 231302210001.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1000122031320.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38217885 + ... + 38244044.

Almost surely, 2^{1000122031320} is an apocalyptic number.

1000122031320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000122031320 is an abundant number, since it is smaller than the sum of its proper divisors (2027770396680).

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

1000122031320 is a wasteful number, since it uses less digits than its factorization.

1000122031320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76462052 (or 76462048 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1000122031320 its reverse (231302210001), we get a palindrome (1231424241321).

The spelling of 1000122031320 in words is "one trillion, one hundred twenty-two million, thirty-one thousand, three hundred twenty".