123018406730 has 8 divisors (see below), whose sum is σ = 221433132132. Its totient is φ = 49207362688.

The previous prime is 123018406699. The next prime is 123018406733. The reversal of 123018406730 is 37604810321.

123018406730 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 112856355481 + 10162051249 = 335941^2 + 100807^2 .

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

It is not an unprimeable number, because it can be changed into a prime (123018406733) 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, 6150920327 + ... + 6150920346.

Almost surely, 2^123018406730 is an apocalyptic number.

123018406730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123018406730 is a deficient number, since it is larger than the sum of its proper divisors (98414725402).

123018406730 is a wasteful number, since it uses less digits than its factorization.

123018406730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12301840680.

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 123018406730 in words is "one hundred twenty-three billion, eighteen million, four hundred six thousand, seven hundred thirty".