123201341312 has 160 divisors (see below), whose sum is σ = 287473352400. Its totient is φ = 52589967360.

The previous prime is 123201341287. The next prime is 123201341399. The reversal of 123201341312 is 213143102321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 95578364 + ... + 95579652.

Almost surely, 2^123201341312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123201341312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143736676200).

123201341312 is an abundant number, since it is smaller than the sum of its proper divisors (164272011088).

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

123201341312 is an frugal number, since it uses more digits than its factorization.

123201341312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642 (or 1609 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 123201341312 its reverse (213143102321), we get a palindrome (336344443633).

The spelling of 123201341312 in words is "one hundred twenty-three billion, two hundred one million, three hundred forty-one thousand, three hundred twelve".