20367232231 has 4 divisors (see below), whose sum is σ = 20412594000. Its totient is φ = 20321870464.

The previous prime is 20367232183. The next prime is 20367232241. The reversal of 20367232231 is 13223276302.

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 20367232231 - 2⁹ = 20367231719 is a prime.

It is a super-2 number, since 2×20367232231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20367232193 and 20367232202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20367232241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22680211 + ... + 22681108.

It is an arithmetic number, because the mean of its divisors is an integer number (5103148500).

Almost surely, 2^20367232231 is an apocalyptic number.

20367232231 is a deficient number, since it is larger than the sum of its proper divisors (45361769).

20367232231 is an equidigital number, since it uses as much as digits as its factorization.

20367232231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45361768.

The product of its (nonzero) digits is 18144, while the sum is 31.

The spelling of 20367232231 in words is "twenty billion, three hundred sixty-seven million, two hundred thirty-two thousand, two hundred thirty-one".