223506103072381 has 2 divisors, whose sum is σ = 223506103072382. Its totient is φ = 223506103072380.

The previous prime is 223506103072309. The next prime is 223506103072451. The reversal of 223506103072381 is 183270301605322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204075938815225 + 19430164257156 = 14285515^2 + 4407966^2 .

It is a cyclic number.

It is not a de Polignac number, because 223506103072381 - 2⁷ = 223506103072253 is a prime.

It is a super-2 number, since 2×223506103072381² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223506103072781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111753051536190 + 111753051536191.

It is an arithmetic number, because the mean of its divisors is an integer number (111753051536191).

Almost surely, 2^{223506103072381} is an apocalyptic number.

It is an amenable number.

223506103072381 is a deficient number, since it is larger than the sum of its proper divisors (1).

223506103072381 is an equidigital number, since it uses as much as digits as its factorization.

223506103072381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 223506103072381 in words is "two hundred twenty-three trillion, five hundred six billion, one hundred three million, seventy-two thousand, three hundred eighty-one".