1000031230320 has 320 divisors, whose sum is σ = 3230097260544. Its totient is φ = 255757501440.

The previous prime is 1000031230301. The next prime is 1000031230409. The reversal of 1000031230320 is 230321300001.

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 1000031230320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 143042025 + ... + 143049015.

Almost surely, 2^{1000031230320} is an apocalyptic number.

1000031230320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1000031230320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1615048630272).

1000031230320 is an abundant number, since it is smaller than the sum of its proper divisors (2230066030224).

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

1000031230320 is a wasteful number, since it uses less digits than its factorization.

1000031230320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7300 (or 7294 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 1000031230320 its reverse (230321300001), we get a palindrome (1230352530321).

The spelling of 1000031230320 in words is "one trillion, thirty-one million, two hundred thirty thousand, three hundred twenty".