2123210334142 has 4 divisors (see below), whose sum is σ = 3184815501216. Its totient is φ = 1061605167070.

The previous prime is 2123210334139. The next prime is 2123210334191. The reversal of 2123210334142 is 2414330123212.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2123210334142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530802583534 + ... + 530802583537.

It is an arithmetic number, because the mean of its divisors is an integer number (796203875304).

Almost surely, 2^{2123210334142} is an apocalyptic number.

2123210334142 is a deficient number, since it is larger than the sum of its proper divisors (1061605167074).

2123210334142 is a wasteful number, since it uses less digits than its factorization.

2123210334142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061605167073.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 2123210334142 its reverse (2414330123212), we get a palindrome (4537540457354).

The spelling of 2123210334142 in words is "two trillion, one hundred twenty-three billion, two hundred ten million, three hundred thirty-four thousand, one hundred forty-two".