30020003122 has 4 divisors (see below), whose sum is σ = 45030004686. Its totient is φ = 15010001560.

The previous prime is 30020003071. The next prime is 30020003147. The reversal of 30020003122 is 22130002003.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 23744036281 + 6275966841 = 154091^2 + 79221^2 .

It is a super-3 number, since 3×30020003122³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7505000779 + ... + 7505000782.

Almost surely, 2^30020003122 is an apocalyptic number.

30020003122 is a deficient number, since it is larger than the sum of its proper divisors (15010001564).

30020003122 is a wasteful number, since it uses less digits than its factorization.

30020003122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15010001563.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 30020003122 its reverse (22130002003), we get a palindrome (52150005125).

The spelling of 30020003122 in words is "thirty billion, twenty million, three thousand, one hundred twenty-two".