1023320111010 has 128 divisors (see below), whose sum is σ = 2508172812288. Its totient is φ = 267144864000.

The previous prime is 1023320110979. The next prime is 1023320111173. The reversal of 1023320111010 is 101110233201.

It is a happy number.

1023320111010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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, 239595175 + ... + 239599445.

It is an arithmetic number, because the mean of its divisors is an integer number (19595100096).

Almost surely, 2^{1023320111010} is an apocalyptic number.

1023320111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1023320111010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1254086406144).

1023320111010 is an abundant number, since it is smaller than the sum of its proper divisors (1484852701278).

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

1023320111010 is a wasteful number, since it uses less digits than its factorization.

1023320111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5120.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1023320111010 its reverse (101110233201), we get a palindrome (1124430344211).

The spelling of 1023320111010 in words is "one trillion, twenty-three billion, three hundred twenty million, one hundred eleven thousand, ten".