123051365842 has 16 divisors (see below), whose sum is σ = 186719722560. Its totient is φ = 60815575408.

The previous prime is 123051365837. The next prime is 123051365851. The reversal of 123051365842 is 248563150321.

It is a junction number, because it is equal to n+sod(n) for n = 123051365795 and 123051365804.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 969313 + ... + 1088884.

It is an arithmetic number, because the mean of its divisors is an integer number (11669982660).

Almost surely, 2^123051365842 is an apocalyptic number.

123051365842 is a deficient number, since it is larger than the sum of its proper divisors (63668356718).

123051365842 is a wasteful number, since it uses less digits than its factorization.

123051365842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058545.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 123051365842 in words is "one hundred twenty-three billion, fifty-one million, three hundred sixty-five thousand, eight hundred forty-two".