30122101213 has 4 divisors (see below), whose sum is σ = 30123737820. Its totient is φ = 30120464608.

The previous prime is 30122101153. The next prime is 30122101223. The reversal of 30122101213 is 31210122103.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26063519364 + 4058581849 = 161442^2 + 63707^2 .

It is a cyclic number.

It is not a de Polignac number, because 30122101213 - 2¹⁷ = 30121970141 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 (30122101223) 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 3 ways as a sum of consecutive naturals, for example, 790378 + ... + 827611.

It is an arithmetic number, because the mean of its divisors is an integer number (7530934455).

Almost surely, 2^30122101213 is an apocalyptic number.

It is an amenable number.

30122101213 is a deficient number, since it is larger than the sum of its proper divisors (1636607).

30122101213 is a wasteful number, since it uses less digits than its factorization.

30122101213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636606.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 30122101213 its reverse (31210122103), we get a palindrome (61332223316).

The spelling of 30122101213 in words is "thirty billion, one hundred twenty-two million, one hundred one thousand, two hundred thirteen".