223031021213 has 32 divisors (see below), whose sum is σ = 299877553920. Its totient is φ = 160195138560.

The previous prime is 223031021209. The next prime is 223031021249. The reversal of 223031021213 is 312120130322.

It is a cyclic number.

It is not a de Polignac number, because 223031021213 - 2² = 223031021209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223031021203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 552581 + ... + 866837.

It is an arithmetic number, because the mean of its divisors is an integer number (9371173560).

Almost surely, 2^223031021213 is an apocalyptic number.

It is an amenable number.

223031021213 is a deficient number, since it is larger than the sum of its proper divisors (76846532707).

223031021213 is a wasteful number, since it uses less digits than its factorization.

223031021213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314997.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 223031021213 its reverse (312120130322), we get a palindrome (535151151535).

The spelling of 223031021213 in words is "two hundred twenty-three billion, thirty-one million, twenty-one thousand, two hundred thirteen".