30121223012311 has 16 divisors (see below), whose sum is σ = 31919942242944. Its totient is φ = 28325497275904.

The previous prime is 30121223012233. The next prime is 30121223012327. The reversal of 30121223012311 is 11321032212103.

It is a de Polignac number, because none of the positive numbers 2^k-30121223012311 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 (30121223012381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152915361 + ... + 153112213.

It is an arithmetic number, because the mean of its divisors is an integer number (1994996390184).

Almost surely, 2^{30121223012311} is an apocalyptic number.

30121223012311 is a deficient number, since it is larger than the sum of its proper divisors (1798719230633).

30121223012311 is a wasteful number, since it uses less digits than its factorization.

30121223012311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204410.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 30121223012311 its reverse (11321032212103), we get a palindrome (41442255224414).

The spelling of 30121223012311 in words is "thirty trillion, one hundred twenty-one billion, two hundred twenty-three million, twelve thousand, three hundred eleven".