123851187340 has 48 divisors (see below), whose sum is σ = 263566084320. Its totient is φ = 48879452160.

The previous prime is 123851187323. The next prime is 123851187367. The reversal of 123851187340 is 43781158321.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1228030 + ... + 1325050.

It is an arithmetic number, because the mean of its divisors is an integer number (5490960090).

Almost surely, 2^123851187340 is an apocalyptic number.

123851187340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123851187340 is an abundant number, since it is smaller than the sum of its proper divisors (139714896980).

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

123851187340 is a wasteful number, since it uses less digits than its factorization.

123851187340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97882 (or 97880 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 123851187340 in words is "one hundred twenty-three billion, eight hundred fifty-one million, one hundred eighty-seven thousand, three hundred forty".