20312133113 has 8 divisors (see below), whose sum is σ = 20342240256. Its totient is φ = 20282050800.

The previous prime is 20312133097. The next prime is 20312133139. The reversal of 20312133113 is 31133121302.

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 20312133113 - 2⁴ = 20312133097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20312133143) 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, 2142203 + ... + 2151663.

It is an arithmetic number, because the mean of its divisors is an integer number (2542780032).

Almost surely, 2^20312133113 is an apocalyptic number.

It is an amenable number.

20312133113 is a deficient number, since it is larger than the sum of its proper divisors (30107143).

20312133113 is a wasteful number, since it uses less digits than its factorization.

20312133113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12415.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 20312133113 its reverse (31133121302), we get a palindrome (51445254415).

The spelling of 20312133113 in words is "twenty billion, three hundred twelve million, one hundred thirty-three thousand, one hundred thirteen".