30121231311 has 48 divisors (see below), whose sum is σ = 44790720000. Its totient is φ = 19499066496.

The previous prime is 30121231291. The next prime is 30121231331. The reversal of 30121231311 is 11313212103.

30121231311 is a `hidden beast` number, since 3 + 0 + 121 + 231 + 311 = 666.

It is an interprime number because it is at equal distance from previous prime (30121231291) and next prime (30121231331).

It is not a de Polignac number, because 30121231311 - 2¹⁴ = 30121214927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30121231331) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 25899016 + ... + 25900178.

It is an arithmetic number, because the mean of its divisors is an integer number (933140000).

Almost surely, 2^30121231311 is an apocalyptic number.

30121231311 is a deficient number, since it is larger than the sum of its proper divisors (14669488689).

30121231311 is a wasteful number, since it uses less digits than its factorization.

30121231311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820 (or 1817 counting only the distinct ones).

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

Adding to 30121231311 its reverse (11313212103), we get a palindrome (41434443414).

The spelling of 30121231311 in words is "thirty billion, one hundred twenty-one million, two hundred thirty-one thousand, three hundred eleven".