30311121311 has 2 divisors, whose sum is σ = 30311121312. Its totient is φ = 30311121310.

The previous prime is 30311121277. The next prime is 30311121359. The reversal of 30311121311 is 11312111303.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30311121311 - 2³⁰ = 29237379487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30311121311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30311121361) 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 as a sum of consecutive naturals, namely, 15155560655 + 15155560656.

It is an arithmetic number, because the mean of its divisors is an integer number (15155560656).

Almost surely, 2^30311121311 is an apocalyptic number.

30311121311 is a deficient number, since it is larger than the sum of its proper divisors (1).

30311121311 is an equidigital number, since it uses as much as digits as its factorization.

30311121311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 30311121311 its reverse (11312111303), we get a palindrome (41623232614).

The spelling of 30311121311 in words is "thirty billion, three hundred eleven million, one hundred twenty-one thousand, three hundred eleven".