11142440102 has 12 divisors (see below), whose sum is σ = 17111394900. Its totient is φ = 5441654988.

The previous prime is 11142440087. The next prime is 11142440131. The reversal of 11142440102 is 20104424111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1502852 + ... + 1510247.

It is an arithmetic number, because the mean of its divisors is an integer number (1425949575).

Almost surely, 2^11142440102 is an apocalyptic number.

11142440102 is a deficient number, since it is larger than the sum of its proper divisors (5968954798).

11142440102 is an equidigital number, since it uses as much as digits as its factorization.

11142440102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3013187 (or 3013144 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11142440102 its reverse (20104424111), we get a palindrome (31246864213).

The spelling of 11142440102 in words is "eleven billion, one hundred forty-two million, four hundred forty thousand, one hundred two".