20263427213 has 4 divisors (see below), whose sum is σ = 20263898880. Its totient is φ = 20262955548.

The previous prime is 20263427207. The next prime is 20263427227. The reversal of 20263427213 is 31272436202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20263427213 - 2⁸ = 20263426957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20263427213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20263427273) 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, 164123 + ... + 259736.

It is an arithmetic number, because the mean of its divisors is an integer number (5065974720).

Almost surely, 2^20263427213 is an apocalyptic number.

It is an amenable number.

20263427213 is a deficient number, since it is larger than the sum of its proper divisors (471667).

20263427213 is an equidigital number, since it uses as much as digits as its factorization.

20263427213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471666.

The product of its (nonzero) digits is 24192, while the sum is 32.

The spelling of 20263427213 in words is "twenty billion, two hundred sixty-three million, four hundred twenty-seven thousand, two hundred thirteen".