31132233200 has 30 divisors (see below), whose sum is σ = 74795191224. Its totient is φ = 12452893120.

The previous prime is 31132233193. The next prime is 31132233241. The reversal of 31132233200 is 233223113.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38914892 + ... + 38915691.

Almost surely, 2^31132233200 is an apocalyptic number.

It is an amenable number.

31132233200 is an abundant number, since it is smaller than the sum of its proper divisors (43662958024).

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

31132233200 is a wasteful number, since it uses less digits than its factorization.

31132233200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77830601 (or 77830590 counting only the distinct ones).

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

Adding to 31132233200 its reverse (233223113), we get a palindrome (31365456313).

The spelling of 31132233200 in words is "thirty-one billion, one hundred thirty-two million, two hundred thirty-three thousand, two hundred".