123585402942 has 32 divisors (see below), whose sum is σ = 274765946400. Its totient is φ = 41175376704.

The previous prime is 123585402917. The next prime is 123585403003. The reversal of 123585402942 is 249204585321.

123585402942 is a `hidden beast` number, since 1 + 2 + 3 + 585 + 4 + 0 + 29 + 42 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434973 + ... + 660584.

It is an arithmetic number, because the mean of its divisors is an integer number (8586435825).

Almost surely, 2^123585402942 is an apocalyptic number.

123585402942 is an abundant number, since it is smaller than the sum of its proper divisors (151180543458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123585402942 is a wasteful number, since it uses less digits than its factorization.

123585402942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097657 (or 1097651 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 123585402942 in words is "one hundred twenty-three billion, five hundred eighty-five million, four hundred two thousand, nine hundred forty-two".