20313135104 has 24 divisors (see below), whose sum is σ = 40616355780. Its totient is φ = 10156566528.

The previous prime is 20313135053. The next prime is 20313135119. The reversal of 20313135104 is 40153131302.

It is a self number, because there is not a number n which added to its sum of digits gives 20313135104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4957214 + ... + 4961309.

Almost surely, 2^20313135104 is an apocalyptic number.

It is an amenable number.

20313135104 is a deficient number, since it is larger than the sum of its proper divisors (20303220676).

20313135104 is an frugal number, since it uses more digits than its factorization.

20313135104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9918545 (or 9918525 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 20313135104 its reverse (40153131302), we get a palindrome (60466266406).

The spelling of 20313135104 in words is "twenty billion, three hundred thirteen million, one hundred thirty-five thousand, one hundred four".