30121231230 has 24 divisors (see below), whose sum is σ = 78315201432. Its totient is φ = 8032328304.

The previous prime is 30121231213. The next prime is 30121231249. The reversal of 30121231230 is 3213212103.

30121231230 is a `hidden beast` number, since 301 + 21 + 2 + 312 + 30 = 666.

It is a super-2 number, since 2×30121231230² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167340084 + ... + 167340263.

It is an arithmetic number, because the mean of its divisors is an integer number (3263133393).

Almost surely, 2^30121231230 is an apocalyptic number.

30121231230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30121231230 is an abundant number, since it is smaller than the sum of its proper divisors (48193970202).

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

30121231230 is a wasteful number, since it uses less digits than its factorization.

30121231230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334680360 (or 334680357 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30121231230 its reverse (3213212103), we get a palindrome (33334443333).

The spelling of 30121231230 in words is "thirty billion, one hundred twenty-one million, two hundred thirty-one thousand, two hundred thirty".