30231223130020 has 48 divisors (see below), whose sum is σ = 69368869483200. Its totient is φ = 10975412430720.

The previous prime is 30231223130011. The next prime is 30231223130023. The reversal of 30231223130020 is 2003132213203.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 30231223129973 and 30231223130000.

It is not an unprimeable number, because it can be changed into a prime (30231223130023) 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, 110861115 + ... + 111133474.

It is an arithmetic number, because the mean of its divisors is an integer number (1445184780900).

Almost surely, 2^{30231223130020} is an apocalyptic number.

It is an amenable number.

30231223130020 is an abundant number, since it is smaller than the sum of its proper divisors (39137646353180).

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

30231223130020 is a wasteful number, since it uses less digits than its factorization.

30231223130020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221995228 (or 221995226 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 30231223130020 its reverse (2003132213203), we get a palindrome (32234355343223).

The spelling of 30231223130020 in words is "thirty trillion, two hundred thirty-one billion, two hundred twenty-three million, one hundred thirty thousand, twenty".