20403333243201 has 8 divisors (see below), whose sum is σ = 28636257183520. Its totient is φ = 12886315732512.

The previous prime is 20403333243199. The next prime is 20403333243283. The reversal of 20403333243201 is 10234233330402.

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

It is not a de Polignac number, because 20403333243201 - 2¹ = 20403333243199 is a prime.

It is a super-2 number, since 2×20403333243201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20403333243701) 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, 178976607340 + ... + 178976607453.

It is an arithmetic number, because the mean of its divisors is an integer number (3579532147940).

Almost surely, 2^{20403333243201} is an apocalyptic number.

It is an amenable number.

20403333243201 is a deficient number, since it is larger than the sum of its proper divisors (8232923940319).

20403333243201 is a wasteful number, since it uses less digits than its factorization.

20403333243201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357953214815.

The product of its (nonzero) digits is 31104, while the sum is 30.

Adding to 20403333243201 its reverse (10234233330402), we get a palindrome (30637566573603).

The spelling of 20403333243201 in words is "twenty trillion, four hundred three billion, three hundred thirty-three million, two hundred forty-three thousand, two hundred one".