221003000023 has 16 divisors (see below), whose sum is σ = 245719167232. Its totient is φ = 197391168000.

The previous prime is 221003000021. The next prime is 221003000051. The reversal of 221003000023 is 320000300122.

It is a happy number.

It is not a de Polignac number, because 221003000023 - 2¹ = 221003000021 is a prime.

It is a super-2 number, since 2×221003000023² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221002999967 and 221003000012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221003000021) 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, 2765893 + ... + 2844673.

It is an arithmetic number, because the mean of its divisors is an integer number (15357447952).

Almost surely, 2^221003000023 is an apocalyptic number.

221003000023 is a deficient number, since it is larger than the sum of its proper divisors (24716167209).

221003000023 is a wasteful number, since it uses less digits than its factorization.

221003000023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85786.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 221003000023 its reverse (320000300122), we get a palindrome (541003300145).

The spelling of 221003000023 in words is "two hundred twenty-one billion, three million, twenty-three", and thus it is an aban number.