20312417011 has 4 divisors (see below), whose sum is σ = 20502252792. Its totient is φ = 20122581232.

The previous prime is 20312416987. The next prime is 20312417063. The reversal of 20312417011 is 11071421302.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20312417011 - 2⁵ = 20312416979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20312417311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94917730 + ... + 94917943.

It is an arithmetic number, because the mean of its divisors is an integer number (5125563198).

Almost surely, 2^20312417011 is an apocalyptic number.

20312417011 is a deficient number, since it is larger than the sum of its proper divisors (189835781).

20312417011 is a wasteful number, since it uses less digits than its factorization.

20312417011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189835780.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 20312417011 its reverse (11071421302), we get a palindrome (31383838313).

The spelling of 20312417011 in words is "twenty billion, three hundred twelve million, four hundred seventeen thousand, eleven".