1023300421220 has 96 divisors (see below), whose sum is σ = 2702896632576. Its totient is φ = 316128153600.

The previous prime is 1023300421193. The next prime is 1023300421261. The reversal of 1023300421220 is 221240033201.

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 = 1023300421192 and 1023300421201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2766161 + ... + 3114200.

It is an arithmetic number, because the mean of its divisors is an integer number (28155173256).

Almost surely, 2^{1023300421220} is an apocalyptic number.

1023300421220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1023300421220 is an abundant number, since it is smaller than the sum of its proper divisors (1679596211356).

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

1023300421220 is a wasteful number, since it uses less digits than its factorization.

1023300421220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5880501 (or 5880499 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1023300421220 its reverse (221240033201), we get a palindrome (1244540454421).

The spelling of 1023300421220 in words is "one trillion, twenty-three billion, three hundred million, four hundred twenty-one thousand, two hundred twenty".