30220123020 has 96 divisors (see below), whose sum is σ = 86035793088. Its totient is φ = 7924580352.

The previous prime is 30220123019. The next prime is 30220123091. The reversal of 30220123020 is 2032102203.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 897204 + ... + 930276.

It is an arithmetic number, because the mean of its divisors is an integer number (896206178).

Almost surely, 2^30220123020 is an apocalyptic number.

30220123020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30220123020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43017896544).

30220123020 is an abundant number, since it is smaller than the sum of its proper divisors (55815670068).

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

30220123020 is a wasteful number, since it uses less digits than its factorization.

30220123020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33339 (or 33337 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 30220123020 its reverse (2032102203), we get a palindrome (32252225223).

It can be divided in two parts, 302201 and 23020, that added together give a triangular number (325221 = T₈₀₆).

The spelling of 30220123020 in words is "thirty billion, two hundred twenty million, one hundred twenty-three thousand, twenty".