30123042000 has 80 divisors (see below), whose sum is σ = 97116706752. Its totient is φ = 8032809600.

The previous prime is 30123041957. The next prime is 30123042007. The reversal of 30123042000 is 24032103.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123042007) 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, 2504254 + ... + 2516253.

Almost surely, 2^30123042000 is an apocalyptic number.

30123042000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30123042000 is an abundant number, since it is smaller than the sum of its proper divisors (66993664752).

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

30123042000 is a wasteful number, since it uses less digits than its factorization.

30123042000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5020533 (or 5020517 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 30123042000 its reverse (24032103), we get a palindrome (30147074103).

The spelling of 30123042000 in words is "thirty billion, one hundred twenty-three million, forty-two thousand".