123030312442 has 8 divisors (see below), whose sum is σ = 187144700832. Its totient is φ = 60648745500.

The previous prime is 123030312421. The next prime is 123030312469. The reversal of 123030312442 is 244213030321.

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

It is a super-2 number, since 2×123030312442² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433205184 + ... + 433205467.

It is an arithmetic number, because the mean of its divisors is an integer number (23393087604).

Almost surely, 2^123030312442 is an apocalyptic number.

123030312442 is a deficient number, since it is larger than the sum of its proper divisors (64114388390).

123030312442 is an equidigital number, since it uses as much as digits as its factorization.

123030312442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866410724.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 123030312442 its reverse (244213030321), we get a palindrome (367243342763).

The spelling of 123030312442 in words is "one hundred twenty-three billion, thirty million, three hundred twelve thousand, four hundred forty-two".