20133032321431 has 4 divisors (see below), whose sum is σ = 20133058795200. Its totient is φ = 20133005847664.

The previous prime is 20133032321401. The next prime is 20133032321459. The reversal of 20133032321431 is 13412323033102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20133032321431 is a prime.

It is a super-2 number, since 2×20133032321431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20133032321431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133032321401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12061351 + ... + 13628728.

It is an arithmetic number, because the mean of its divisors is an integer number (5033264698800).

Almost surely, 2^{20133032321431} is an apocalyptic number.

20133032321431 is a deficient number, since it is larger than the sum of its proper divisors (26473769).

20133032321431 is an equidigital number, since it uses as much as digits as its factorization.

20133032321431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26473768.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 20133032321431 its reverse (13412323033102), we get a palindrome (33545355354533).

The spelling of 20133032321431 in words is "twenty trillion, one hundred thirty-three billion, thirty-two million, three hundred twenty-one thousand, four hundred thirty-one".