1331110230320 has 160 divisors (see below), whose sum is σ = 3478746096000. Its totient is φ = 469990490112.

The previous prime is 1331110230319. The next prime is 1331110230371. The reversal of 1331110230320 is 230320111331.

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 = 1331110230292 and 1331110230301.

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, 154255766 + ... + 154264394.

It is an arithmetic number, because the mean of its divisors is an integer number (21742163100).

Almost surely, 2^{1331110230320} is an apocalyptic number.

1331110230320 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 1331110230320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1739373048000).

1331110230320 is an abundant number, since it is smaller than the sum of its proper divisors (2147635865680).

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

1331110230320 is a wasteful number, since it uses less digits than its factorization.

1331110230320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15127 (or 15121 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1331110230320 its reverse (230320111331), we get a palindrome (1561430341651).

The spelling of 1331110230320 in words is "one trillion, three hundred thirty-one billion, one hundred ten million, two hundred thirty thousand, three hundred twenty".