20220203523 has 8 divisors (see below), whose sum is σ = 29034138448. Its totient is φ = 12443202144.

The previous prime is 20220203491. The next prime is 20220203539. The reversal of 20220203523 is 32530202202.

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

It is not a de Polignac number, because 20220203523 - 2⁵ = 20220203491 is a prime.

It is a super-2 number, since 2×20220203523² (a number of 21 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 20220203523.

It is not an unprimeable number, because it can be changed into a prime (20220203723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259233340 + ... + 259233417.

It is an arithmetic number, because the mean of its divisors is an integer number (3629267306).

Almost surely, 2^20220203523 is an apocalyptic number.

20220203523 is a deficient number, since it is larger than the sum of its proper divisors (8813934925).

20220203523 is a wasteful number, since it uses less digits than its factorization.

20220203523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518466773.

The product of its (nonzero) digits is 1440, while the sum is 21.

Adding to 20220203523 its reverse (32530202202), we get a palindrome (52750405725).

The spelling of 20220203523 in words is "twenty billion, two hundred twenty million, two hundred three thousand, five hundred twenty-three".