20312302135 has 8 divisors (see below), whose sum is σ = 24437424960. Its totient is φ = 16208066784.

The previous prime is 20312302111. The next prime is 20312302139. The reversal of 20312302135 is 53120321302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20312302135 - 2⁵ = 20312302103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312302139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5219727 + ... + 5223616.

It is an arithmetic number, because the mean of its divisors is an integer number (3054678120).

Almost surely, 2^20312302135 is an apocalyptic number.

20312302135 is a deficient number, since it is larger than the sum of its proper divisors (4125122825).

20312302135 is a wasteful number, since it uses less digits than its factorization.

20312302135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10443737.

The product of its (nonzero) digits is 1080, while the sum is 22.

Adding to 20312302135 its reverse (53120321302), we get a palindrome (73432623437).

The spelling of 20312302135 in words is "twenty billion, three hundred twelve million, three hundred two thousand, one hundred thirty-five".