123031245415542 has 8 divisors (see below), whose sum is σ = 246062490831096. Its totient is φ = 41010415138512.

The previous prime is 123031245415531. The next prime is 123031245415571. The reversal of 123031245415542 is 245514542130321.

It is a sphenic number, since it is the product of 3 distinct primes.

123031245415542 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 123031245415494 and 123031245415503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10252603784623 + ... + 10252603784634.

It is an arithmetic number, because the mean of its divisors is an integer number (30757811353887).

Almost surely, 2^{123031245415542} is an apocalyptic number.

123031245415542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

123031245415542 is a wasteful number, since it uses less digits than its factorization.

123031245415542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20505207569262.

The product of its (nonzero) digits is 576000, while the sum is 42.

Adding to 123031245415542 its reverse (245514542130321), we get a palindrome (368545787545863).

The spelling of 123031245415542 in words is "one hundred twenty-three trillion, thirty-one billion, two hundred forty-five million, four hundred fifteen thousand, five hundred forty-two".