223020312103 has 4 divisors (see below), whose sum is σ = 224624774920. Its totient is φ = 221415849288.

The previous prime is 223020312089. The next prime is 223020312217. The reversal of 223020312103 is 301213020322.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223020312103 is a prime.

It is a super-2 number, since 2×223020312103² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223020312803) 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, 802231200 + ... + 802231477.

It is an arithmetic number, because the mean of its divisors is an integer number (56156193730).

Almost surely, 2^223020312103 is an apocalyptic number.

223020312103 is a deficient number, since it is larger than the sum of its proper divisors (1604462817).

223020312103 is a wasteful number, since it uses less digits than its factorization.

223020312103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604462816.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 223020312103 its reverse (301213020322), we get a palindrome (524233332425).

The spelling of 223020312103 in words is "two hundred twenty-three billion, twenty million, three hundred twelve thousand, one hundred three".