223190398381 has 2 divisors, whose sum is σ = 223190398382. Its totient is φ = 223190398380.

The previous prime is 223190398351. The next prime is 223190398391. The reversal of 223190398381 is 183893091322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173813114281 + 49377284100 = 416909^2 + 222210^2 .

It is a cyclic number.

It is not a de Polignac number, because 223190398381 - 2⁹ = 223190397869 is a prime.

It is a super-3 number, since 3×223190398381³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223190398331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111595199190 + 111595199191.

It is an arithmetic number, because the mean of its divisors is an integer number (111595199191).

Almost surely, 2^223190398381 is an apocalyptic number.

It is an amenable number.

223190398381 is a deficient number, since it is larger than the sum of its proper divisors (1).

223190398381 is an equidigital number, since it uses as much as digits as its factorization.

223190398381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 223190398381 in words is "two hundred twenty-three billion, one hundred ninety million, three hundred ninety-eight thousand, three hundred eighty-one".