43213236920 has 64 divisors (see below), whose sum is σ = 112941432000. Its totient is φ = 14573076480.

The previous prime is 43213236797. The next prime is 43213236943. The reversal of 43213236920 is 2963231234.

It is a Harshad number since it is a multiple of its sum of digits (35).

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 15 ways as a sum of consecutive naturals, for example, 1247945 + ... + 1282104.

It is an arithmetic number, because the mean of its divisors is an integer number (1764709875).

Almost surely, 2^43213236920 is an apocalyptic number.

43213236920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43213236920 is an abundant number, since it is smaller than the sum of its proper divisors (69728195080).

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

43213236920 is a wasteful number, since it uses less digits than its factorization.

43213236920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2530128 (or 2530124 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 35.

The spelling of 43213236920 in words is "forty-three billion, two hundred thirteen million, two hundred thirty-six thousand, nine hundred twenty".