20133131376 has 20 divisors (see below), whose sum is σ = 52010589512. Its totient is φ = 6711043776.

The previous prime is 20133131353. The next prime is 20133131377. The reversal of 20133131376 is 67313133102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133131377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209720071 + ... + 209720166.

Almost surely, 2^20133131376 is an apocalyptic number.

It is an amenable number.

20133131376 is an abundant number, since it is smaller than the sum of its proper divisors (31877458136).

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

20133131376 is a wasteful number, since it uses less digits than its factorization.

20133131376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419440248 (or 419440242 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 30.

Adding to 20133131376 its reverse (67313133102), we get a palindrome (87446264478).

The spelling of 20133131376 in words is "twenty billion, one hundred thirty-three million, one hundred thirty-one thousand, three hundred seventy-six".