223635031044 has 12 divisors (see below), whose sum is σ = 521815072464. Its totient is φ = 74545010344.

The previous prime is 223635031019. The next prime is 223635031049. The reversal of 223635031044 is 440130536322.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×223635031044² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223635030996 and 223635031014.

It is not an unprimeable number, because it can be changed into a prime (223635031049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9318126282 + ... + 9318126305.

It is an arithmetic number, because the mean of its divisors is an integer number (43484589372).

Almost surely, 2^223635031044 is an apocalyptic number.

It is an amenable number.

223635031044 is an abundant number, since it is smaller than the sum of its proper divisors (298180041420).

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

223635031044 is a wasteful number, since it uses less digits than its factorization.

223635031044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18636252594 (or 18636252592 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 223635031044 its reverse (440130536322), we get a palindrome (663765567366).

The spelling of 223635031044 in words is "two hundred twenty-three billion, six hundred thirty-five million, thirty-one thousand, forty-four".