20120030 has 32 divisors (see below), whose sum is σ = 41900544. Its totient is φ = 6813216.

The previous prime is 20120029. The next prime is 20120047. The reversal of 20120030 is 3002102.

It is a congruent number.

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, 4079 + ... + 7541.

It is an arithmetic number, because the mean of its divisors is an integer number (1309392).

Almost surely, 2^20120030 is an apocalyptic number.

20120030 is an abundant number, since it is smaller than the sum of its proper divisors (21780514).

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

20120030 is a wasteful number, since it uses less digits than its factorization.

20120030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3560.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 20120030 is about 4485.5356424846. The cubic root of 20120030 is about 271.9836982012.

Adding to 20120030 its reverse (3002102), we get a palindrome (23122132).

The spelling of 20120030 in words is "twenty million, one hundred twenty thousand, thirty".