1023320023212 has 24 divisors (see below), whose sum is σ = 2391370027200. Its totient is φ = 340589059216.

The previous prime is 1023320023189. The next prime is 1023320023213. The reversal of 1023320023212 is 2123200233201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1023320023213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64693662 + ... + 64709477.

It is an arithmetic number, because the mean of its divisors is an integer number (99640417800).

Almost surely, 2^{1023320023212} is an apocalyptic number.

1023320023212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1023320023212 is an abundant number, since it is smaller than the sum of its proper divisors (1368050003988).

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

1023320023212 is a wasteful number, since it uses less digits than its factorization.

1023320023212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129403805 (or 129403803 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1023320023212 its reverse (2123200233201), we get a palindrome (3146520256413).

The spelling of 1023320023212 in words is "one trillion, twenty-three billion, three hundred twenty million, twenty-three thousand, two hundred twelve".