123017419742 has 32 divisors (see below), whose sum is σ = 211924823040. Its totient is φ = 52462692000.

The previous prime is 123017419687. The next prime is 123017419747. The reversal of 123017419742 is 247914710321.

It is a super-2 number, since 2×123017419742² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123017419742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123017419747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3881243 + ... + 3912809.

It is an arithmetic number, because the mean of its divisors is an integer number (6622650720).

Almost surely, 2^123017419742 is an apocalyptic number.

123017419742 is a deficient number, since it is larger than the sum of its proper divisors (88907403298).

123017419742 is a wasteful number, since it uses less digits than its factorization.

123017419742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32936.

The product of its (nonzero) digits is 84672, while the sum is 41.

The spelling of 123017419742 in words is "one hundred twenty-three billion, seventeen million, four hundred nineteen thousand, seven hundred forty-two".