123213396012 has 96 divisors (see below), whose sum is σ = 332220338688. Its totient is φ = 34813200384.

The previous prime is 123213396011. The next prime is 123213396013. The reversal of 123213396012 is 210693312321.

It is an interprime number because it is at equal distance from previous prime (123213396011) and next prime (123213396013).

It is not an unprimeable number, because it can be changed into a prime (123213396011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11621898 + ... + 11632494.

It is an arithmetic number, because the mean of its divisors is an integer number (3460628528).

Almost surely, 2^123213396012 is an apocalyptic number.

123213396012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123213396012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166110169344).

123213396012 is an abundant number, since it is smaller than the sum of its proper divisors (209006942676).

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

123213396012 is a wasteful number, since it uses less digits than its factorization.

123213396012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12135 (or 12133 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The spelling of 123213396012 in words is "one hundred twenty-three billion, two hundred thirteen million, three hundred ninety-six thousand, twelve".