123054618280 has 32 divisors (see below), whose sum is σ = 302043155040. Its totient is φ = 44747133760.

The previous prime is 123054618277. The next prime is 123054618289. The reversal of 123054618280 is 82816450321.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (123054618289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139834354 + ... + 139835233.

It is an arithmetic number, because the mean of its divisors is an integer number (9438848595).

Almost surely, 2^123054618280 is an apocalyptic number.

123054618280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123054618280 is an abundant number, since it is smaller than the sum of its proper divisors (178988536760).

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

123054618280 is a wasteful number, since it uses less digits than its factorization.

123054618280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279669609 (or 279669605 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 123054618280 in words is "one hundred twenty-three billion, fifty-four million, six hundred eighteen thousand, two hundred eighty".