30232021020 has 48 divisors (see below), whose sum is σ = 84781415040. Its totient is φ = 8049324096.

The previous prime is 30232020991. The next prime is 30232021021. The reversal of 30232021020 is 2012023203.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30232021021) 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, 353230 + ... + 430389.

It is an arithmetic number, because the mean of its divisors is an integer number (1766279480).

Almost surely, 2^30232021020 is an apocalyptic number.

30232021020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30232021020 is an abundant number, since it is smaller than the sum of its proper divisors (54549394020).

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

30232021020 is a wasteful number, since it uses less digits than its factorization.

30232021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784274 (or 784272 counting only the distinct ones).

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

Adding to 30232021020 its reverse (2012023203), we get a palindrome (32244044223).

The spelling of 30232021020 in words is "thirty billion, two hundred thirty-two million, twenty-one thousand, twenty".