118987339723 has 4 divisors (see below), whose sum is σ = 135985531120. Its totient is φ = 101989148328.

The previous prime is 118987339699. The next prime is 118987339741. The reversal of 118987339723 is 327933789811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118987339723 is a prime.

It is a super-2 number, since 2×118987339723² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118987339763) 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, 8499095688 + ... + 8499095701.

It is an arithmetic number, because the mean of its divisors is an integer number (33996382780).

Almost surely, 2^118987339723 is an apocalyptic number.

118987339723 is a deficient number, since it is larger than the sum of its proper divisors (16998191397).

118987339723 is an equidigital number, since it uses as much as digits as its factorization.

118987339723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16998191396.

The product of its digits is 13716864, while the sum is 61.

The spelling of 118987339723 in words is "one hundred eighteen billion, nine hundred eighty-seven million, three hundred thirty-nine thousand, seven hundred twenty-three".