20012054223 has 16 divisors (see below), whose sum is σ = 30654222336. Its totient is φ = 11375585760.

The previous prime is 20012054201. The next prime is 20012054239. The reversal of 20012054223 is 32245021002.

It is not a de Polignac number, because 20012054223 - 2¹³ = 20012046031 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 20012054223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011054223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2490636 + ... + 2498657.

It is an arithmetic number, because the mean of its divisors is an integer number (1915888896).

Almost surely, 2^20012054223 is an apocalyptic number.

20012054223 is a deficient number, since it is larger than the sum of its proper divisors (10642168113).

20012054223 is a wasteful number, since it uses less digits than its factorization.

20012054223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4989494.

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 20012054223 its reverse (32245021002), we get a palindrome (52257075225).

The spelling of 20012054223 in words is "twenty billion, twelve million, fifty-four thousand, two hundred twenty-three".