223003013421 has 4 divisors (see below), whose sum is σ = 297337351232. Its totient is φ = 148668675612.

The previous prime is 223003013419. The next prime is 223003013437. The reversal of 223003013421 is 124310300322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 223003013421 - 2¹ = 223003013419 is a prime.

It is a super-2 number, since 2×223003013421² (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 (223003013411) 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, 37167168901 + ... + 37167168906.

It is an arithmetic number, because the mean of its divisors is an integer number (74334337808).

Almost surely, 2^223003013421 is an apocalyptic number.

It is an amenable number.

223003013421 is a deficient number, since it is larger than the sum of its proper divisors (74334337811).

223003013421 is an equidigital number, since it uses as much as digits as its factorization.

223003013421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74334337810.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 223003013421 its reverse (124310300322), we get a palindrome (347313313743).

The spelling of 223003013421 in words is "two hundred twenty-three billion, three million, thirteen thousand, four hundred twenty-one".