223031423421 has 12 divisors (see below), whose sum is σ = 322161388380. Its totient is φ = 148685359680.

The previous prime is 223031423413. The next prime is 223031423437. The reversal of 223031423421 is 124324130322.

223031423421 is a `hidden beast` number, since 2 + 2 + 3 + 0 + 314 + 2 + 342 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 52652350521 + 170379072900 = 229461^2 + 412770^2 .

It is not a de Polignac number, because 223031423421 - 2³ = 223031423413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223031423401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 621681 + ... + 912441.

It is an arithmetic number, because the mean of its divisors is an integer number (26846782365).

Almost surely, 2^223031423421 is an apocalyptic number.

It is an amenable number.

223031423421 is a deficient number, since it is larger than the sum of its proper divisors (99129964959).

223031423421 is a wasteful number, since it uses less digits than its factorization.

223031423421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375996 (or 375993 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 223031423421 its reverse (124324130322), we get a palindrome (347355553743).

The spelling of 223031423421 in words is "two hundred twenty-three billion, thirty-one million, four hundred twenty-three thousand, four hundred twenty-one".