123213023244 has 72 divisors (see below), whose sum is σ = 312303137328. Its totient is φ = 40959354240.

The previous prime is 123213023207. The next prime is 123213023261. The reversal of 123213023244 is 442320312321.

123213023244 is a `hidden beast` number, since 1 + 2 + 32 + 1 + 302 + 324 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22371139 + ... + 22376645.

It is an arithmetic number, because the mean of its divisors is an integer number (4337543574).

Almost surely, 2^123213023244 is an apocalyptic number.

It is an amenable number.

123213023244 is an abundant number, since it is smaller than the sum of its proper divisors (189090114084).

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

123213023244 is a wasteful number, since it uses less digits than its factorization.

123213023244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7095 (or 7090 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 123213023244 its reverse (442320312321), we get a palindrome (565533335565).

The spelling of 123213023244 in words is "one hundred twenty-three billion, two hundred thirteen million, twenty-three thousand, two hundred forty-four".