20623541050267 has 4 divisors (see below), whose sum is σ = 20761954077600. Its totient is φ = 20485128022936.

The previous prime is 20623541050241. The next prime is 20623541050303. The reversal of 20623541050267 is 76205014532602.

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 20623541050267 - 2³⁵ = 20589181311899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20623541050967) 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, 69206513443 + ... + 69206513740.

It is an arithmetic number, because the mean of its divisors is an integer number (5190488519400).

Almost surely, 2^{20623541050267} is an apocalyptic number.

20623541050267 is a deficient number, since it is larger than the sum of its proper divisors (138413027333).

20623541050267 is a wasteful number, since it uses less digits than its factorization.

20623541050267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138413027332.

The product of its (nonzero) digits is 604800, while the sum is 43.

Adding to 20623541050267 its reverse (76205014532602), we get a palindrome (96828555582869).

The spelling of 20623541050267 in words is "twenty trillion, six hundred twenty-three billion, five hundred forty-one million, fifty thousand, two hundred sixty-seven".