221000203023 has 8 divisors (see below), whose sum is σ = 295205635968. Its totient is φ = 147064119384.

The previous prime is 221000203009. The next prime is 221000203037. The reversal of 221000203023 is 320302000122.

It is an interprime number because it is at equal distance from previous prime (221000203009) and next prime (221000203037).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 221000203023 - 2⁴ = 221000203007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221000202993 and 221000203011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221000203093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67335411 + ... + 67338692.

It is an arithmetic number, because the mean of its divisors is an integer number (36900704496).

Almost surely, 2^221000203023 is an apocalyptic number.

221000203023 is a deficient number, since it is larger than the sum of its proper divisors (74205432945).

221000203023 is a wasteful number, since it uses less digits than its factorization.

221000203023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134674653.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 221000203023 its reverse (320302000122), we get a palindrome (541302203145).

The spelling of 221000203023 in words is "two hundred twenty-one billion, two hundred three thousand, twenty-three".