30142723820 has 36 divisors (see below), whose sum is σ = 69577383792. Its totient is φ = 10960989600.

The previous prime is 30142723813. The next prime is 30142723837. The reversal of 30142723820 is 2832724103.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6225416 + ... + 6230255.

Almost surely, 2^30142723820 is an apocalyptic number.

It is an amenable number.

30142723820 is an abundant number, since it is smaller than the sum of its proper divisors (39434659972).

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

30142723820 is a wasteful number, since it uses less digits than its factorization.

30142723820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12455702 (or 12455689 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The spelling of 30142723820 in words is "thirty billion, one hundred forty-two million, seven hundred twenty-three thousand, eight hundred twenty".