32131231441420 has 96 divisors (see below), whose sum is σ = 72416107008000. Its totient is φ = 11948654995200.

The previous prime is 32131231441399. The next prime is 32131231441489. The reversal of 32131231441420 is 2414413213123.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

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 31 ways as a sum of consecutive naturals, for example, 912066 + ... + 8068105.

It is an arithmetic number, because the mean of its divisors is an integer number (754334448000).

Almost surely, 2^{32131231441420} is an apocalyptic number.

It is an amenable number.

32131231441420 is an abundant number, since it is smaller than the sum of its proper divisors (40284875566580).

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

32131231441420 is a wasteful number, since it uses less digits than its factorization.

32131231441420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8980439 (or 8980437 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 32131231441420 its reverse (2414413213123), we get a palindrome (34545644654543).

The spelling of 32131231441420 in words is "thirty-two trillion, one hundred thirty-one billion, two hundred thirty-one million, four hundred forty-one thousand, four hundred twenty".