20312522404435 has 16 divisors (see below), whose sum is σ = 24695101549440. Its totient is φ = 16036826981760.

The previous prime is 20312522404403. The next prime is 20312522404441. The reversal of 20312522404435 is 53440422521302.

It is a happy number.

It is not a de Polignac number, because 20312522404435 - 2⁵ = 20312522404403 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20312522404394 and 20312522404403.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11163672 + ... + 12855061.

It is an arithmetic number, because the mean of its divisors is an integer number (1543443846840).

Almost surely, 2^{20312522404435} is an apocalyptic number.

20312522404435 is a deficient number, since it is larger than the sum of its proper divisors (4382579145005).

20312522404435 is a wasteful number, since it uses less digits than its factorization.

20312522404435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24020958.

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 20312522404435 its reverse (53440422521302), we get a palindrome (73752944925737).

The spelling of 20312522404435 in words is "twenty trillion, three hundred twelve billion, five hundred twenty-two million, four hundred four thousand, four hundred thirty-five".