123311201346 has 12 divisors (see below), whose sum is σ = 267174269622. Its totient is φ = 41103733776.

The previous prime is 123311201341. The next prime is 123311201353. The reversal of 123311201346 is 643102113321.

It is a happy number.

123311201346 is a `hidden beast` number, since 1 + 2 + 3 + 311 + 2 + 0 + 1 + 346 = 666.

It can be written as a sum of positive squares in only one way, i.e., 96994250721 + 26316950625 = 311439^2 + 162225^2 .

It is not an unprimeable number, because it can be changed into a prime (123311201341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3425311131 + ... + 3425311166.

Almost surely, 2^123311201346 is an apocalyptic number.

123311201346 is an abundant number, since it is smaller than the sum of its proper divisors (143863068276).

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

123311201346 is a wasteful number, since it uses less digits than its factorization.

123311201346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6850622305 (or 6850622302 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 123311201346 its reverse (643102113321), we get a palindrome (766413314667).

The spelling of 123311201346 in words is "one hundred twenty-three billion, three hundred eleven million, two hundred one thousand, three hundred forty-six".