20000102231 has 4 divisors (see below), whose sum is σ = 20000385552. Its totient is φ = 19999818912.

The previous prime is 20000102209. The next prime is 20000102261. The reversal of 20000102231 is 13220100002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20000102231 - 2¹⁰ = 20000101207 is a prime.

It is a super-2 number, since 2×20000102231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000102261) 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, 58511 + ... + 208383.

It is an arithmetic number, because the mean of its divisors is an integer number (5000096388).

Almost surely, 2^20000102231 is an apocalyptic number.

20000102231 is a deficient number, since it is larger than the sum of its proper divisors (283321).

20000102231 is a wasteful number, since it uses less digits than its factorization.

20000102231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283320.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20000102231 its reverse (13220100002), we get a palindrome (33220202233).

The spelling of 20000102231 in words is "twenty billion, one hundred two thousand, two hundred thirty-one".