20133212330 has 128 divisors (see below), whose sum is σ = 46085276160. Its totient is φ = 6151127040.

The previous prime is 20133212327. The next prime is 20133212347. The reversal of 20133212330 is 3321233102.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8139974 + ... + 8142446.

It is an arithmetic number, because the mean of its divisors is an integer number (360041220).

Almost surely, 2^20133212330 is an apocalyptic number.

20133212330 is an abundant number, since it is smaller than the sum of its proper divisors (25952063830).

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

20133212330 is a wasteful number, since it uses less digits than its factorization.

20133212330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2704.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20133212330 its reverse (3321233102), we get a palindrome (23454445432).

The spelling of 20133212330 in words is "twenty billion, one hundred thirty-three million, two hundred twelve thousand, three hundred thirty".