20431534514232 has 64 divisors (see below), whose sum is σ = 51194954396160. Its totient is φ = 6795032428800.

The previous prime is 20431534514231. The next prime is 20431534514273. The reversal of 20431534514232 is 23241543513402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20431534514231) by changing a digit.

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, 102586507 + ... + 102785477.

It is an arithmetic number, because the mean of its divisors is an integer number (799921162440).

Almost surely, 2^{20431534514232} is an apocalyptic number.

It is an amenable number.

20431534514232 is an abundant number, since it is smaller than the sum of its proper divisors (30763419881928).

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

20431534514232 is a wasteful number, since it uses less digits than its factorization.

20431534514232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208684 (or 208680 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 39.

The spelling of 20431534514232 in words is "twenty trillion, four hundred thirty-one billion, five hundred thirty-four million, five hundred fourteen thousand, two hundred thirty-two".