20022232523 has 4 divisors (see below), whose sum is σ = 20105312568. Its totient is φ = 19939152480.

The previous prime is 20022232493. The next prime is 20022232537. The reversal of 20022232523 is 32523222002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20022232523 - 2¹⁰ = 20022231499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20022832523) 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 3 ways as a sum of consecutive naturals, for example, 41539661 + ... + 41540142.

It is an arithmetic number, because the mean of its divisors is an integer number (5026328142).

Almost surely, 2^20022232523 is an apocalyptic number.

20022232523 is a deficient number, since it is larger than the sum of its proper divisors (83080045).

20022232523 is an equidigital number, since it uses as much as digits as its factorization.

20022232523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83080044.

The product of its (nonzero) digits is 2880, while the sum is 23.

Adding to 20022232523 its reverse (32523222002), we get a palindrome (52545454525).

The spelling of 20022232523 in words is "twenty billion, twenty-two million, two hundred thirty-two thousand, five hundred twenty-three".