1233112021000 has 32 divisors (see below), whose sum is σ = 2885482131480. Its totient is φ = 493244808000.

The previous prime is 1233112020941. The next prime is 1233112021019. The reversal of 1233112021000 is 1202113321.

It can be written as a sum of positive squares in 4 ways, for example, as 822202816516 + 410909204484 = 906754^2 + 641022^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 616555011 + ... + 616557010.

Almost surely, 2^{1233112021000} is an apocalyptic number.

1233112021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1233112021000 is an abundant number, since it is smaller than the sum of its proper divisors (1652370110480).

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

1233112021000 is a wasteful number, since it uses less digits than its factorization.

1233112021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233112042 (or 1233112028 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1233112021000 its reverse (1202113321), we get a palindrome (1234314134321).

The spelling of 1233112021000 in words is "one trillion, two hundred thirty-three billion, one hundred twelve million, twenty-one thousand".