20223500293 has 4 divisors (see below), whose sum is σ = 20770081420. Its totient is φ = 19676919168.

The previous prime is 20223500263. The next prime is 20223500309. The reversal of 20223500293 is 39200532202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16440881284 + 3782619009 = 128222^2 + 61503^2 .

It is a cyclic number.

It is not a de Polignac number, because 20223500293 - 2⁹ = 20223499781 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 (20223500263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273290508 + ... + 273290581.

It is an arithmetic number, because the mean of its divisors is an integer number (5192520355).

Almost surely, 2^20223500293 is an apocalyptic number.

It is an amenable number.

20223500293 is a deficient number, since it is larger than the sum of its proper divisors (546581127).

20223500293 is an equidigital number, since it uses as much as digits as its factorization.

20223500293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546581126.

The product of its (nonzero) digits is 6480, while the sum is 28.

The spelling of 20223500293 in words is "twenty billion, two hundred twenty-three million, five hundred thousand, two hundred ninety-three".