20000311233 has 12 divisors (see below), whose sum is σ = 31020891120. Its totient is φ = 11428749192.

The previous prime is 20000311223. The next prime is 20000311271. The reversal of 20000311233 is 33211300002.

It is not a de Polignac number, because 20000311233 - 2¹² = 20000307137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20000311213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68028123 + ... + 68028416.

It is an arithmetic number, because the mean of its divisors is an integer number (2585074260).

Almost surely, 2^20000311233 is an apocalyptic number.

It is an amenable number.

20000311233 is a deficient number, since it is larger than the sum of its proper divisors (11020579887).

20000311233 is a wasteful number, since it uses less digits than its factorization.

20000311233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136056556 (or 136056549 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20000311233 its reverse (33211300002), we get a palindrome (53211611235).

The spelling of 20000311233 in words is "twenty billion, three hundred eleven thousand, two hundred thirty-three".