223881017373 has 12 divisors (see below), whose sum is σ = 348259360540. Its totient is φ = 137772933696.

The previous prime is 223881017329. The next prime is 223881017383. The reversal of 223881017373 is 373710188322.

It is a happy number.

223881017373 is a `hidden beast` number, since 22 + 388 + 10 + 173 + 73 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 31718897604 + 192162119769 = 178098^2 + 438363^2 .

It is not a de Polignac number, because 223881017373 - 2¹⁶ = 223880951837 is a prime.

It is a super-2 number, since 2×223881017373² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223881017383) 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, 956756368 + ... + 956756601.

Almost surely, 2^223881017373 is an apocalyptic number.

It is an amenable number.

223881017373 is a deficient number, since it is larger than the sum of its proper divisors (124378343167).

223881017373 is a wasteful number, since it uses less digits than its factorization.

223881017373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913512988 (or 1913512985 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 223881017373 in words is "two hundred twenty-three billion, eight hundred eighty-one million, seventeen thousand, three hundred seventy-three".