20013321013432 has 8 divisors (see below), whose sum is σ = 37524976900200. Its totient is φ = 10006660506712.

The previous prime is 20013321013429. The next prime is 20013321013457. The reversal of 20013321013432 is 23431012331002.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 20013321013397 and 20013321013406.

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 as a sum of consecutive naturals, namely, 1250832563332 + ... + 1250832563347.

It is an arithmetic number, because the mean of its divisors is an integer number (4690622112525).

Almost surely, 2^{20013321013432} is an apocalyptic number.

It is an amenable number.

20013321013432 is a deficient number, since it is larger than the sum of its proper divisors (17511655886768).

20013321013432 is a wasteful number, since it uses less digits than its factorization.

20013321013432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501665126685 (or 2501665126681 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 20013321013432 its reverse (23431012331002), we get a palindrome (43444333344434).

The spelling of 20013321013432 in words is "twenty trillion, thirteen billion, three hundred twenty-one million, thirteen thousand, four hundred thirty-two".