20320121010133 has 8 divisors (see below), whose sum is σ = 23236197839360. Its totient is φ = 17407344780720.

The previous prime is 20320121010107. The next prime is 20320121010187. The reversal of 20320121010133 is 33101012102302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20320121010133 - 2¹³ = 20320121001941 is a prime.

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 20320121010133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320121010193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 825136758 + ... + 825161383.

It is an arithmetic number, because the mean of its divisors is an integer number (2904524729920).

Almost surely, 2^{20320121010133} is an apocalyptic number.

It is an amenable number.

20320121010133 is a deficient number, since it is larger than the sum of its proper divisors (2916076829227).

20320121010133 is a wasteful number, since it uses less digits than its factorization.

20320121010133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650299907.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20320121010133 its reverse (33101012102302), we get a palindrome (53421133112435).

The spelling of 20320121010133 in words is "twenty trillion, three hundred twenty billion, one hundred twenty-one million, ten thousand, one hundred thirty-three".