1022023312 has 40 divisors (see below), whose sum is σ = 2049109920. Its totient is φ = 493489920.

The previous prime is 1022023309. The next prime is 1022023313. The reversal of 1022023312 is 2133202201.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1022023313) 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, 52887 + ... + 69577.

It is an arithmetic number, because the mean of its divisors is an integer number (51227748).

Almost surely, 2^1022023312 is an apocalyptic number.

It is an amenable number.

1022023312 is an abundant number, since it is smaller than the sum of its proper divisors (1027086608).

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

1022023312 is a wasteful number, since it uses less digits than its factorization.

1022023312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16831 (or 16825 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1022023312 is about 31969.0993304472. The cubic root of 1022023312 is about 1007.2878620403.

Adding to 1022023312 its reverse (2133202201), we get a palindrome (3155225513).

The spelling of 1022023312 in words is "one billion, twenty-two million, twenty-three thousand, three hundred twelve".