123213222231009 has 16 divisors (see below), whose sum is σ = 172994910624000. Its totient is φ = 77790044616336.

The previous prime is 123213222230999. The next prime is 123213222231079. The reversal of 123213222231009 is 900132222312321.

It is not a de Polignac number, because 123213222231009 - 2⁷ = 123213222230881 is a prime.

It is a super-2 number, since 2×123213222231009² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123213222231079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400297339 + ... + 400605024.

It is an arithmetic number, because the mean of its divisors is an integer number (10812181914000).

Almost surely, 2^{123213222231009} is an apocalyptic number.

123213222231009 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

123213222231009 is a deficient number, since it is larger than the sum of its proper divisors (49781688392991).

123213222231009 is a wasteful number, since it uses less digits than its factorization.

123213222231009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800905084.

The product of its (nonzero) digits is 15552, while the sum is 33.

The spelling of 123213222231009 in words is "one hundred twenty-three trillion, two hundred thirteen billion, two hundred twenty-two million, two hundred thirty-one thousand, nine".