30211120142 has 16 divisors (see below), whose sum is σ = 51934763520. Its totient is φ = 12911554968.

The previous prime is 30211120141. The next prime is 30211120151. The reversal of 30211120142 is 24102111203.

It is a self number, because there is not a number n which added to its sum of digits gives 30211120142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30211120141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3000458 + ... + 3010509.

It is an arithmetic number, because the mean of its divisors is an integer number (3245922720).

Almost surely, 2^30211120142 is an apocalyptic number.

30211120142 is a deficient number, since it is larger than the sum of its proper divisors (21723643378).

30211120142 is a wasteful number, since it uses less digits than its factorization.

30211120142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6011335.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 30211120142 its reverse (24102111203), we get a palindrome (54313231345).

The spelling of 30211120142 in words is "thirty billion, two hundred eleven million, one hundred twenty thousand, one hundred forty-two".