123843242990 has 8 divisors (see below), whose sum is σ = 222917837400. Its totient is φ = 49537297192.

The previous prime is 123843242989. The next prime is 123843242993. The reversal of 123843242990 is 99242348321.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123843242993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6192162140 + ... + 6192162159.

It is an arithmetic number, because the mean of its divisors is an integer number (27864729675).

Almost surely, 2^123843242990 is an apocalyptic number.

123843242990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123843242990 is a deficient number, since it is larger than the sum of its proper divisors (99074594410).

123843242990 is a wasteful number, since it uses less digits than its factorization.

123843242990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12384324306.

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 123843242990 in words is "one hundred twenty-three billion, eight hundred forty-three million, two hundred forty-two thousand, nine hundred ninety".