30111120142 has 16 divisors (see below), whose sum is σ = 45326241792. Its totient is φ = 15002404120.

The previous prime is 30111120139. The next prime is 30111120173. The reversal of 30111120142 is 24102111103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2770563 + ... + 2781409.

It is an arithmetic number, because the mean of its divisors is an integer number (2832890112).

Almost surely, 2^30111120142 is an apocalyptic number.

30111120142 is a deficient number, since it is larger than the sum of its proper divisors (15215121650).

30111120142 is a wasteful number, since it uses less digits than its factorization.

30111120142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15623.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 30111120142 its reverse (24102111103), we get a palindrome (54213231245).

The spelling of 30111120142 in words is "thirty billion, one hundred eleven million, one hundred twenty thousand, one hundred forty-two".