30023131300020 has 144 divisors (see below), whose sum is σ = 98478877206528. Its totient is φ = 7374893460480.

The previous prime is 30023131299881. The next prime is 30023131300087. The reversal of 30023131300020 is 2000313132003.

30023131300020 is a `hidden beast` number, since 30 + 0 + 2 + 313 + 1 + 300 + 0 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30023131299966 and 30023131300002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 104233636 + ... + 104521275.

It is an arithmetic number, because the mean of its divisors is an integer number (683881091712).

Almost surely, 2^{30023131300020} is an apocalyptic number.

30023131300020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30023131300020 is an abundant number, since it is smaller than the sum of its proper divisors (68455745906508).

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

30023131300020 is a wasteful number, since it uses less digits than its factorization.

30023131300020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208754990 (or 208754985 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 30023131300020 its reverse (2000313132003), we get a palindrome (32023444432023).

The spelling of 30023131300020 in words is "thirty trillion, twenty-three billion, one hundred thirty-one million, three hundred thousand, twenty".