30111021311 has 12 divisors (see below), whose sum is σ = 35112770640. Its totient is φ = 25746325920.

The previous prime is 30111021301. The next prime is 30111021313. The reversal of 30111021311 is 11312011103.

It is a happy number.

It is not a de Polignac number, because 30111021311 - 2⁶ = 30111021247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30111021313) 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 11 ways as a sum of consecutive naturals, for example, 731195 + ... + 771276.

It is an arithmetic number, because the mean of its divisors is an integer number (2926064220).

Almost surely, 2^30111021311 is an apocalyptic number.

30111021311 is a deficient number, since it is larger than the sum of its proper divisors (5001749329).

30111021311 is a wasteful number, since it uses less digits than its factorization.

30111021311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502894 (or 1502887 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 30111021311 its reverse (11312011103), we get a palindrome (41423032414).

The spelling of 30111021311 in words is "thirty billion, one hundred eleven million, twenty-one thousand, three hundred eleven".