11211134142 has 16 divisors (see below), whose sum is σ = 24147058320. Its totient is φ = 3449579712.

The previous prime is 11211134117. The next prime is 11211134153. The reversal of 11211134142 is 24143111211.

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, 71866167 + ... + 71866322.

It is an arithmetic number, because the mean of its divisors is an integer number (1509191145).

Almost surely, 2^11211134142 is an apocalyptic number.

11211134142 is an abundant number, since it is smaller than the sum of its proper divisors (12935924178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11211134142 is a wasteful number, since it uses less digits than its factorization.

11211134142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143732507.

The product of its digits is 192, while the sum is 21.

Adding to 11211134142 its reverse (24143111211), we get a palindrome (35354245353).

The spelling of 11211134142 in words is "eleven billion, two hundred eleven million, one hundred thirty-four thousand, one hundred forty-two".