123013229998 has 4 divisors (see below), whose sum is σ = 184519845000. Its totient is φ = 61506614998.

The previous prime is 123013229981. The next prime is 123013230007. The reversal of 123013229998 is 899922310321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 899922310321 = 2837 ⋅317209133.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30753307498 + ... + 30753307501.

It is an arithmetic number, because the mean of its divisors is an integer number (46129961250).

Almost surely, 2^123013229998 is an apocalyptic number.

123013229998 is a deficient number, since it is larger than the sum of its proper divisors (61506615002).

123013229998 is an equidigital number, since it uses as much as digits as its factorization.

123013229998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61506615001.

The product of its (nonzero) digits is 419904, while the sum is 49.

The spelling of 123013229998 in words is "one hundred twenty-three billion, thirteen million, two hundred twenty-nine thousand, nine hundred ninety-eight".