1023111300 has 144 divisors (see below), whose sum is σ = 3196045440. Its totient is φ = 251919360.

The previous prime is 1023111269. The next prime is 1023111301. The reversal of 1023111300 is 31113201.

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

It is not an unprimeable number, because it can be changed into a prime (1023111301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 197544 + ... + 202656.

It is an arithmetic number, because the mean of its divisors is an integer number (22194760).

Almost surely, 2^1023111300 is an apocalyptic number.

1023111300 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 1023111300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1598022720).

1023111300 is an abundant number, since it is smaller than the sum of its proper divisors (2172934140).

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

1023111300 is a wasteful number, since it uses less digits than its factorization.

1023111300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5182 (or 5175 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1023111300 is about 31986.1110483910. Note that the first 3 decimals coincide. The cubic root of 1023111300 is about 1007.6451691062.

Adding to 1023111300 its reverse (31113201), we get a palindrome (1054224501).

The spelling of 1023111300 in words is "one billion, twenty-three million, one hundred eleven thousand, three hundred".