30121131132 has 72 divisors (see below), whose sum is σ = 76702953600. Its totient is φ = 9966322080.

The previous prime is 30121131101. The next prime is 30121131143. The reversal of 30121131132 is 23113112103.

30121131132 is a `hidden beast` number, since 301 + 21 + 1 + 311 + 32 = 666.

It is a super-2 number, since 2×30121131132² (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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3168907 + ... + 3178397.

It is an arithmetic number, because the mean of its divisors is an integer number (1065318800).

Almost surely, 2^30121131132 is an apocalyptic number.

It is an amenable number.

30121131132 is an abundant number, since it is smaller than the sum of its proper divisors (46581822468).

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

30121131132 is a wasteful number, since it uses less digits than its factorization.

30121131132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10143 (or 10138 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 30121131132 its reverse (23113112103), we get a palindrome (53234243235).

The spelling of 30121131132 in words is "thirty billion, one hundred twenty-one million, one hundred thirty-one thousand, one hundred thirty-two".