30112302121 has 24 divisors (see below), whose sum is σ = 34569360000. Its totient is φ = 26160625920.

The previous prime is 30112302119. The next prime is 30112302127. The reversal of 30112302121 is 12120321103.

It is not a de Polignac number, because 30112302121 - 2¹ = 30112302119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30112302095 and 30112302104.

It is not an unprimeable number, because it can be changed into a prime (30112302127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3471636 + ... + 3480298.

It is an arithmetic number, because the mean of its divisors is an integer number (1440390000).

Almost surely, 2^30112302121 is an apocalyptic number.

It is an amenable number.

30112302121 is a deficient number, since it is larger than the sum of its proper divisors (4457057879).

30112302121 is a wasteful number, since it uses less digits than its factorization.

30112302121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9957 (or 9946 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 30112302121 its reverse (12120321103), we get a palindrome (42232623224).

It can be divided in two parts, 30112 and 302121, that added together give a palindrome (332233).

The spelling of 30112302121 in words is "thirty billion, one hundred twelve million, three hundred two thousand, one hundred twenty-one".