118243349531 has 8 divisors (see below), whose sum is σ = 124537492224. Its totient is φ = 112045300840.

The previous prime is 118243349489. The next prime is 118243349537. The reversal of 118243349531 is 135943342811.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118243349531 is a prime.

It is a super-2 number, since 2×118243349531² (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 (118243349537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24020975 + ... + 24025896.

It is an arithmetic number, because the mean of its divisors is an integer number (15567186528).

Almost surely, 2^118243349531 is an apocalyptic number.

118243349531 is a deficient number, since it is larger than the sum of its proper divisors (6294142693).

118243349531 is a wasteful number, since it uses less digits than its factorization.

118243349531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48047001.

The product of its digits is 311040, while the sum is 44.

The spelling of 118243349531 in words is "one hundred eighteen billion, two hundred forty-three million, three hundred forty-nine thousand, five hundred thirty-one".