30121210032 has 20 divisors (see below), whose sum is σ = 77813126040. Its totient is φ = 10040403328.

The previous prime is 30121210013. The next prime is 30121210043. The reversal of 30121210032 is 23001212103.

It is a junction number, because it is equal to n+sod(n) for n = 30121209993 and 30121210020.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313762557 + ... + 313762652.

It is an arithmetic number, because the mean of its divisors is an integer number (3890656302).

Almost surely, 2^30121210032 is an apocalyptic number.

It is an amenable number.

30121210032 is an abundant number, since it is smaller than the sum of its proper divisors (47691916008).

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

30121210032 is a wasteful number, since it uses less digits than its factorization.

30121210032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627525220 (or 627525214 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 30121210032 its reverse (23001212103), we get a palindrome (53122422135).

The spelling of 30121210032 in words is "thirty billion, one hundred twenty-one million, two hundred ten thousand, thirty-two".