123223011 has 8 divisors (see below), whose sum is σ = 164879040. Its totient is φ = 81857832.

The previous prime is 123223007. The next prime is 123223031. The reversal of 123223011 is 110322321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123223011 - 2² = 123223007 is a prime.

It is a super-2 number, since 2×123223011² = 30367820879812242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123223031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71721 + ... + 73418.

It is an arithmetic number, because the mean of its divisors is an integer number (20609880).

Almost surely, 2^123223011 is an apocalyptic number.

123223011 is a deficient number, since it is larger than the sum of its proper divisors (41656029).

123223011 is a wasteful number, since it uses less digits than its factorization.

123223011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145425.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 123223011 is about 11100.5860656093. The cubic root of 123223011 is about 497.6193644717.

Adding to 123223011 its reverse (110322321), we get a palindrome (233545332).

The spelling of 123223011 in words is "one hundred twenty-three million, two hundred twenty-three thousand, eleven".