20434323005524 has 6 divisors (see below), whose sum is σ = 35760065259674. Its totient is φ = 10217161502760.

The previous prime is 20434323005489. The next prime is 20434323005527. The reversal of 20434323005524 is 42550032343402.

It can be written as a sum of positive squares in only one way, i.e., 17755267690000 + 2679055315524 = 4213700^2 + 1636782^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20434323005527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2554290375687 + ... + 2554290375694.

Almost surely, 2^{20434323005524} is an apocalyptic number.

It is an amenable number.

20434323005524 is a deficient number, since it is larger than the sum of its proper divisors (15325742254150).

20434323005524 is a wasteful number, since it uses less digits than its factorization.

20434323005524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5108580751385 (or 5108580751383 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 37.

Adding to 20434323005524 its reverse (42550032343402), we get a palindrome (62984355348926).

The spelling of 20434323005524 in words is "twenty trillion, four hundred thirty-four billion, three hundred twenty-three million, five thousand, five hundred twenty-four".