123021210234 has 32 divisors (see below), whose sum is σ = 268598481984. Its totient is φ = 37334148480.

The previous prime is 123021210167. The next prime is 123021210287. The reversal of 123021210234 is 432012120321.

It is a self number, because there is not a number n which added to its sum of digits gives 123021210234.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10797012 + ... + 10808399.

It is an arithmetic number, because the mean of its divisors is an integer number (8393702562).

Almost surely, 2^123021210234 is an apocalyptic number.

123021210234 is an abundant number, since it is smaller than the sum of its proper divisors (145577271750).

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

123021210234 is a wasteful number, since it uses less digits than its factorization.

123021210234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21605502.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 123021210234 its reverse (432012120321), we get a palindrome (555033330555).

The spelling of 123021210234 in words is "one hundred twenty-three billion, twenty-one million, two hundred ten thousand, two hundred thirty-four".