20313122215134 has 16 divisors (see below), whose sum is σ = 46429993634688. Its totient is φ = 5803749204312.

The previous prime is 20313122215121. The next prime is 20313122215159. The reversal of 20313122215134 is 43151222131302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241822883472 + ... + 241822883555.

It is an arithmetic number, because the mean of its divisors is an integer number (2901874602168).

Almost surely, 2^{20313122215134} is an apocalyptic number.

20313122215134 is an abundant number, since it is smaller than the sum of its proper divisors (26116871419554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20313122215134 is a wasteful number, since it uses less digits than its factorization.

20313122215134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483645767039.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 20313122215134 its reverse (43151222131302), we get a palindrome (63464344346436).

The spelling of 20313122215134 in words is "twenty trillion, three hundred thirteen billion, one hundred twenty-two million, two hundred fifteen thousand, one hundred thirty-four".