30111220442 has 4 divisors (see below), whose sum is σ = 45166830666. Its totient is φ = 15055610220.

The previous prime is 30111220439. The next prime is 30111220457. The reversal of 30111220442 is 24402211103.

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

It can be written as a sum of positive squares in only one way, i.e., 20002727761 + 10108492681 = 141431^2 + 100541^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7527805109 + ... + 7527805112.

Almost surely, 2^30111220442 is an apocalyptic number.

30111220442 is a deficient number, since it is larger than the sum of its proper divisors (15055610224).

30111220442 is a wasteful number, since it uses less digits than its factorization.

30111220442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15055610223.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 30111220442 its reverse (24402211103), we get a palindrome (54513431545).

The spelling of 30111220442 in words is "thirty billion, one hundred eleven million, two hundred twenty thousand, four hundred forty-two".