123311013198 has 8 divisors (see below), whose sum is σ = 246622026408. Its totient is φ = 41103671064.

The previous prime is 123311013197. The next prime is 123311013211. The reversal of 123311013198 is 891310113321.

It is a sphenic number, since it is the product of 3 distinct primes.

123311013198 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123311013197) 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, 10275917761 + ... + 10275917772.

It is an arithmetic number, because the mean of its divisors is an integer number (30827753301).

Almost surely, 2^123311013198 is an apocalyptic number.

123311013198 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

123311013198 is a wasteful number, since it uses less digits than its factorization.

123311013198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20551835538.

The product of its (nonzero) digits is 3888, while the sum is 33.

The spelling of 123311013198 in words is "one hundred twenty-three billion, three hundred eleven million, thirteen thousand, one hundred ninety-eight".