1110021001320 has 128 divisors (see below), whose sum is σ = 4151766896640. Its totient is φ = 230653712640.

The previous prime is 1110021001301. The next prime is 1110021001321. The reversal of 1110021001320 is 231001200111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1110021001296 and 1110021001305.

It is not an unprimeable number, because it can be changed into a prime (1110021001321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60056832 + ... + 60075311.

It is an arithmetic number, because the mean of its divisors is an integer number (32435678880).

Almost surely, 2^{1110021001320} is an apocalyptic number.

1110021001320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1110021001320 is an abundant number, since it is smaller than the sum of its proper divisors (3041745895320).

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

1110021001320 is a wasteful number, since it uses less digits than its factorization.

1110021001320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120132175 (or 120132171 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 1110021001320 its reverse (231001200111), we get a palindrome (1341022201431).

The spelling of 1110021001320 in words is "one trillion, one hundred ten billion, twenty-one million, one thousand, three hundred twenty".