123306005740 has 12 divisors (see below), whose sum is σ = 258942612096. Its totient is φ = 49322402288.

The previous prime is 123306005729. The next prime is 123306005743. The reversal of 123306005740 is 47500603321.

It is not an unprimeable number, because it can be changed into a prime (123306005743) 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, 3082650124 + ... + 3082650163.

It is an arithmetic number, because the mean of its divisors is an integer number (21578551008).

Almost surely, 2^123306005740 is an apocalyptic number.

123306005740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123306005740 is an abundant number, since it is smaller than the sum of its proper divisors (135636606356).

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

123306005740 is a wasteful number, since it uses less digits than its factorization.

123306005740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6165300296 (or 6165300294 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The spelling of 123306005740 in words is "one hundred twenty-three billion, three hundred six million, five thousand, seven hundred forty".