23123220532 has 6 divisors (see below), whose sum is σ = 40465635938. Its totient is φ = 11561610264.

The previous prime is 23123220517. The next prime is 23123220583. The reversal of 23123220532 is 23502232132.

It can be written as a sum of positive squares in only one way, i.e., 17299088676 + 5824131856 = 131526^2 + 76316^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23123220497 and 23123220506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2890402563 + ... + 2890402570.

Almost surely, 2^23123220532 is an apocalyptic number.

It is an amenable number.

23123220532 is a deficient number, since it is larger than the sum of its proper divisors (17342415406).

23123220532 is a wasteful number, since it uses less digits than its factorization.

23123220532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5780805137 (or 5780805135 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 23123220532 its reverse (23502232132), we get a palindrome (46625452664).

The spelling of 23123220532 in words is "twenty-three billion, one hundred twenty-three million, two hundred twenty thousand, five hundred thirty-two".