20002232311 has 4 divisors (see below), whose sum is σ = 21054981400. Its totient is φ = 18949483224.

The previous prime is 20002232291. The next prime is 20002232339. The reversal of 20002232311 is 11323220002.

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 20002232311 - 2²³ = 19993843703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002232111) 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, 526374516 + ... + 526374553.

It is an arithmetic number, because the mean of its divisors is an integer number (5263745350).

Almost surely, 2^20002232311 is an apocalyptic number.

20002232311 is a deficient number, since it is larger than the sum of its proper divisors (1052749089).

20002232311 is a wasteful number, since it uses less digits than its factorization.

20002232311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052749088.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20002232311 its reverse (11323220002), we get a palindrome (31325452313).

The spelling of 20002232311 in words is "twenty billion, two million, two hundred thirty-two thousand, three hundred eleven".