123361551376 has 80 divisors (see below), whose sum is σ = 285148249344. Its totient is φ = 50550331392.

The previous prime is 123361551361. The next prime is 123361551377. The reversal of 123361551376 is 673155163321.

It is not an unprimeable number, because it can be changed into a prime (123361551377) 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, 7598820 + ... + 7615036.

Almost surely, 2^123361551376 is an apocalyptic number.

123361551376 is a gapful number since it is divisible by the number (16) 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 123361551376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142574124672).

123361551376 is an abundant number, since it is smaller than the sum of its proper divisors (161786697968).

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

123361551376 is a wasteful number, since it uses less digits than its factorization.

123361551376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19208 (or 19202 counting only the distinct ones).

The product of its digits is 340200, while the sum is 43.

The spelling of 123361551376 in words is "one hundred twenty-three billion, three hundred sixty-one million, five hundred fifty-one thousand, three hundred seventy-six".