203022313311021 has 8 divisors (see below), whose sum is σ = 270697354338144. Its totient is φ = 135347740578960.

The previous prime is 203022313310959. The next prime is 203022313311029. The reversal of 203022313311021 is 120113313220302.

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

It is not a de Polignac number, because 203022313311021 - 2¹⁷ = 203022313179949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203022313310982 and 203022313311000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203022313311029) 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, 116060931 + ... + 117797216.

It is an arithmetic number, because the mean of its divisors is an integer number (33837169292268).

Almost surely, 2^{203022313311021} is an apocalyptic number.

It is an amenable number.

203022313311021 is a deficient number, since it is larger than the sum of its proper divisors (67675041027123).

203022313311021 is a wasteful number, since it uses less digits than its factorization.

203022313311021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234147531.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 203022313311021 its reverse (120113313220302), we get a palindrome (323135626531323).

The spelling of 203022313311021 in words is "two hundred three trillion, twenty-two billion, three hundred thirteen million, three hundred eleven thousand, twenty-one".