30213223020 has 48 divisors (see below), whose sum is σ = 93996695520. Its totient is φ = 8056859328.

The previous prime is 30213222973. The next prime is 30213223031. The reversal of 30213223020 is 2032231203.

It is a happy number.

30213223020 is a `hidden beast` number, since 302 + 132 + 230 + 2 + 0 = 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 = 30213222984 and 30213223002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27974667 + ... + 27975746.

It is an arithmetic number, because the mean of its divisors is an integer number (1958264490).

Almost surely, 2^30213223020 is an apocalyptic number.

30213223020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30213223020 is an abundant number, since it is smaller than the sum of its proper divisors (63783472500).

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

30213223020 is a wasteful number, since it uses less digits than its factorization.

30213223020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55950431 (or 55950423 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30213223020 its reverse (2032231203), we get a palindrome (32245454223).

The spelling of 30213223020 in words is "thirty billion, two hundred thirteen million, two hundred twenty-three thousand, twenty".