123547811342 has 8 divisors (see below), whose sum is σ = 187120957296. Its totient is φ = 61174158912.

The previous prime is 123547811293. The next prime is 123547811347. The reversal of 123547811342 is 243118745321.

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

It is a self number, because there is not a number n which added to its sum of digits gives 123547811342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123547811347) 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, 299873123 + ... + 299873534.

It is an arithmetic number, because the mean of its divisors is an integer number (23390119662).

Almost surely, 2^123547811342 is an apocalyptic number.

123547811342 is a deficient number, since it is larger than the sum of its proper divisors (63573145954).

123547811342 is a wasteful number, since it uses less digits than its factorization.

123547811342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599746762.

The product of its digits is 161280, while the sum is 41.

The spelling of 123547811342 in words is "one hundred twenty-three billion, five hundred forty-seven million, eight hundred eleven thousand, three hundred forty-two".