30031142020 has 24 divisors (see below), whose sum is σ = 68798616768. Its totient is φ = 10920415200.

The previous prime is 30031141969. The next prime is 30031142041. The reversal of 30031142020 is 2024113003.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30031141985 and 30031142003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68252376 + ... + 68252815.

It is an arithmetic number, because the mean of its divisors is an integer number (2866609032).

Almost surely, 2^30031142020 is an apocalyptic number.

It is an amenable number.

30031142020 is an abundant number, since it is smaller than the sum of its proper divisors (38767474748).

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

30031142020 is a wasteful number, since it uses less digits than its factorization.

30031142020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136505211 (or 136505209 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 30031142020 its reverse (2024113003), we get a palindrome (32055255023).

The spelling of 30031142020 in words is "thirty billion, thirty-one million, one hundred forty-two thousand, twenty".