30121131230 has 32 divisors (see below), whose sum is σ = 54432692928. Its totient is φ = 12000844800.

The previous prime is 30121131221. The next prime is 30121131263. The reversal of 30121131230 is 3213112103.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30121131199 and 30121131208.

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, 2828015 + ... + 2838645.

It is an arithmetic number, because the mean of its divisors is an integer number (1701021654).

Almost surely, 2^30121131230 is an apocalyptic number.

30121131230 is a deficient number, since it is larger than the sum of its proper divisors (24311561698).

30121131230 is a wasteful number, since it uses less digits than its factorization.

30121131230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11732.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 30121131230 its reverse (3213112103), we get a palindrome (33334243333).

The spelling of 30121131230 in words is "thirty billion, one hundred twenty-one million, one hundred thirty-one thousand, two hundred thirty".