1023313220312 has 96 divisors (see below), whose sum is σ = 2056443046560. Its totient is φ = 477064896000.

The previous prime is 1023313220309. The next prime is 1023313220329. The reversal of 1023313220312 is 2130223133201.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 317698862 + ... + 317702082.

It is an arithmetic number, because the mean of its divisors is an integer number (21421281735).

Almost surely, 2^{1023313220312} is an apocalyptic number.

It is an amenable number.

1023313220312 is an abundant number, since it is smaller than the sum of its proper divisors (1033129826248).

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

1023313220312 is a wasteful number, since it uses less digits than its factorization.

1023313220312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5145 (or 5118 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1023313220312 its reverse (2130223133201), we get a palindrome (3153536353513).

The spelling of 1023313220312 in words is "one trillion, twenty-three billion, three hundred thirteen million, two hundred twenty thousand, three hundred twelve".