123213222231011 has 4 divisors (see below), whose sum is σ = 134414424252024. Its totient is φ = 112012020210000.

The previous prime is 123213222230999. The next prime is 123213222231079. The reversal of 123213222231011 is 110132222312321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123213222231011 - 2¹⁸ = 123213221968867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123213222231091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5600601010490 + ... + 5600601010511.

It is an arithmetic number, because the mean of its divisors is an integer number (33603606063006).

Almost surely, 2^{123213222231011} is an apocalyptic number.

123213222231011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123213222231011 is a deficient number, since it is larger than the sum of its proper divisors (11201202021013).

123213222231011 is a wasteful number, since it uses less digits than its factorization.

123213222231011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11201202021012.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 123213222231011 its reverse (110132222312321), we get a palindrome (233345444543332).

The spelling of 123213222231011 in words is "one hundred twenty-three trillion, two hundred thirteen billion, two hundred twenty-two million, two hundred thirty-one thousand, eleven".