123401117834 has 16 divisors (see below), whose sum is σ = 192980079072. Its totient is φ = 59128572048.

The previous prime is 123401117809. The next prime is 123401117837. The reversal of 123401117834 is 438711104321.

It is a junction number, because it is equal to n+sod(n) for n = 123401117794 and 123401117803.

It is not an unprimeable number, because it can be changed into a prime (123401117837) 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, 13532204 + ... + 13541319.

It is an arithmetic number, because the mean of its divisors is an integer number (12061254942).

Almost surely, 2^123401117834 is an apocalyptic number.

123401117834 is a deficient number, since it is larger than the sum of its proper divisors (69578961238).

123401117834 is a wasteful number, since it uses less digits than its factorization.

123401117834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27073621.

The product of its (nonzero) digits is 16128, while the sum is 35.

The spelling of 123401117834 in words is "one hundred twenty-three billion, four hundred one million, one hundred seventeen thousand, eight hundred thirty-four".