20333234312 has 16 divisors (see below), whose sum is σ = 38156789340. Its totient is φ = 10158090496.

The previous prime is 20333234309. The next prime is 20333234357. The reversal of 20333234312 is 21343233302.

It can be written as a sum of positive squares in 2 ways, for example, as 18196391236 + 2136843076 = 134894^2 + 46226^2 .

It is a super-2 number, since 2×20333234312² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055693 + ... + 1074780.

Almost surely, 2^20333234312 is an apocalyptic number.

It is an amenable number.

20333234312 is a deficient number, since it is larger than the sum of its proper divisors (17823555028).

20333234312 is a wasteful number, since it uses less digits than its factorization.

20333234312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131672 (or 2131668 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 20333234312 its reverse (21343233302), we get a palindrome (41676467614).

The spelling of 20333234312 in words is "twenty billion, three hundred thirty-three million, two hundred thirty-four thousand, three hundred twelve".