12101020142 has 4 divisors (see below), whose sum is σ = 18151530216. Its totient is φ = 6050510070.

The previous prime is 12101020093. The next prime is 12101020157. The reversal of 12101020142 is 24102010121.

It is a happy number.

12101020142 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3025255034 + ... + 3025255037.

It is an arithmetic number, because the mean of its divisors is an integer number (4537882554).

Almost surely, 2^12101020142 is an apocalyptic number.

12101020142 is a deficient number, since it is larger than the sum of its proper divisors (6050510074).

12101020142 is an equidigital number, since it uses as much as digits as its factorization.

12101020142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6050510073.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12101020142 its reverse (24102010121), we get a palindrome (36203030263).

The spelling of 12101020142 in words is "twelve billion, one hundred one million, twenty thousand, one hundred forty-two".