123203021233312 has 48 divisors (see below), whose sum is σ = 265679943134760. Its totient is φ = 55978654670848.

The previous prime is 123203021233297. The next prime is 123203021233333. The reversal of 123203021233312 is 213332120302321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 122304931432336 + 898089800976 = 11059156^2 + 947676^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3904745293 + ... + 3904776844.

Almost surely, 2^{123203021233312} is an apocalyptic number.

It is an amenable number.

123203021233312 is an abundant number, since it is smaller than the sum of its proper divisors (142476921901448).

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

123203021233312 is a wasteful number, since it uses less digits than its factorization.

123203021233312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7809522193 (or 7809522185 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 123203021233312 its reverse (213332120302321), we get a palindrome (336535141535633).

The spelling of 123203021233312 in words is "one hundred twenty-three trillion, two hundred three billion, twenty-one million, two hundred thirty-three thousand, three hundred twelve".