30211020206 has 4 divisors (see below), whose sum is σ = 45316530312. Its totient is φ = 15105510102.

The previous prime is 30211020173. The next prime is 30211020241. The reversal of 30211020206 is 60202011203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60202011203 = 193201 ⋅311603.

It is a congruent number.

It is an unprimeable number.

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, 7552755050 + ... + 7552755053.

It is an arithmetic number, because the mean of its divisors is an integer number (11329132578).

Almost surely, 2^30211020206 is an apocalyptic number.

30211020206 is a deficient number, since it is larger than the sum of its proper divisors (15105510106).

30211020206 is a wasteful number, since it uses less digits than its factorization.

30211020206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15105510105.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30211020206 its reverse (60202011203), we get a palindrome (90413031409).

The spelling of 30211020206 in words is "thirty billion, two hundred eleven million, twenty thousand, two hundred six".