223115523012 has 18 divisors (see below), whose sum is σ = 563986461038. Its totient is φ = 74371840992.

The previous prime is 223115522983. The next prime is 223115523019. The reversal of 223115523012 is 210325511322.

223115523012 is a `hidden beast` number, since 2 + 23 + 115 + 523 + 0 + 1 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 207914112576 + 15201410436 = 455976^2 + 123294^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×223115523012³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (223115523019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3098826673 + ... + 3098826744.

Almost surely, 2^223115523012 is an apocalyptic number.

It is an amenable number.

223115523012 is an abundant number, since it is smaller than the sum of its proper divisors (340870938026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223115523012 is a wasteful number, since it uses less digits than its factorization.

223115523012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6197653427 (or 6197653422 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The spelling of 223115523012 in words is "two hundred twenty-three billion, one hundred fifteen million, five hundred twenty-three thousand, twelve".