32131220143200 has 144 divisors (see below), whose sum is σ = 105350532290640. Its totient is φ = 8505782763520.

The previous prime is 32131220143037. The next prime is 32131220143229. The reversal of 32131220143200 is 234102213123.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48532545 + ... + 49190144.

It is an arithmetic number, because the mean of its divisors is an integer number (731600918685).

Almost surely, 2^{32131220143200} is an apocalyptic number.

32131220143200 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32131220143200 is an abundant number, since it is smaller than the sum of its proper divisors (73219312147440).

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

32131220143200 is a wasteful number, since it uses less digits than its factorization.

32131220143200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97722849 (or 97722836 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 32131220143200 its reverse (234102213123), we get a palindrome (32365322356323).

The spelling of 32131220143200 in words is "thirty-two trillion, one hundred thirty-one billion, two hundred twenty million, one hundred forty-three thousand, two hundred".