20023010311 has 4 divisors (see below), whose sum is σ = 20024057512. Its totient is φ = 20021963112.

The previous prime is 20023010309. The next prime is 20023010351. The reversal of 20023010311 is 11301032002.

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 20023010311 - 2¹ = 20023010309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20023010291 and 20023010300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023010351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494376 + ... + 533341.

It is an arithmetic number, because the mean of its divisors is an integer number (5006014378).

Almost surely, 2^20023010311 is an apocalyptic number.

20023010311 is a deficient number, since it is larger than the sum of its proper divisors (1047201).

20023010311 is a wasteful number, since it uses less digits than its factorization.

20023010311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047200.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20023010311 its reverse (11301032002), we get a palindrome (31324042313).

The spelling of 20023010311 in words is "twenty billion, twenty-three million, ten thousand, three hundred eleven".