1021333023012 has 24 divisors (see below), whose sum is σ = 2384129311200. Its totient is φ = 340298780416.

The previous prime is 1021333022993. The next prime is 1021333023059. The reversal of 1021333023012 is 2103203331201.

It is a super-2 number, since 2×1021333023012² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1021333023012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18165837 + ... + 18221972.

It is an arithmetic number, because the mean of its divisors is an integer number (99338721300).

Almost surely, 2^{1021333023012} is an apocalyptic number.

1021333023012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1021333023012 is an abundant number, since it is smaller than the sum of its proper divisors (1362796288188).

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

1021333023012 is a wasteful number, since it uses less digits than its factorization.

1021333023012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36390155 (or 36390153 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1021333023012 its reverse (2103203331201), we get a palindrome (3124536354213).

The spelling of 1021333023012 in words is "one trillion, twenty-one billion, three hundred thirty-three million, twenty-three thousand, twelve".