30121131036331 has 2 divisors, whose sum is σ = 30121131036332. Its totient is φ = 30121131036330.

The previous prime is 30121131036319. The next prime is 30121131036341. The reversal of 30121131036331 is 13363013112103.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30121131036331 - 2¹³ = 30121131028139 is a prime.

It is a super-2 number, since 2×30121131036331² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30121131036331.

It is not a weakly prime, because it can be changed into another prime (30121131036341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15060565518165 + 15060565518166.

It is an arithmetic number, because the mean of its divisors is an integer number (15060565518166).

Almost surely, 2^{30121131036331} is an apocalyptic number.

30121131036331 is a deficient number, since it is larger than the sum of its proper divisors (1).

30121131036331 is an equidigital number, since it uses as much as digits as its factorization.

30121131036331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 28.

Adding to 30121131036331 its reverse (13363013112103), we get a palindrome (43484144148434).

The spelling of 30121131036331 in words is "thirty trillion, one hundred twenty-one billion, one hundred thirty-one million, thirty-six thousand, three hundred thirty-one".