20131022233 has 8 divisors (see below), whose sum is σ = 23020949952. Its totient is φ = 17244611376.

The previous prime is 20131022231. The next prime is 20131022269. The reversal of 20131022233 is 33222013102.

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 20131022233 - 2¹ = 20131022231 is a prime.

It is a super-2 number, since 2×20131022233² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20131022233.

It is not an unprimeable number, because it can be changed into a prime (20131022231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 866935 + ... + 889852.

It is an arithmetic number, because the mean of its divisors is an integer number (2877618744).

Almost surely, 2^20131022233 is an apocalyptic number.

It is an amenable number.

20131022233 is a deficient number, since it is larger than the sum of its proper divisors (2889927719).

20131022233 is a wasteful number, since it uses less digits than its factorization.

20131022233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758431.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20131022233 its reverse (33222013102), we get a palindrome (53353035335).

The spelling of 20131022233 in words is "twenty billion, one hundred thirty-one million, twenty-two thousand, two hundred thirty-three".