2129201123134 has 4 divisors (see below), whose sum is σ = 3193801684704. Its totient is φ = 1064600561566.

The previous prime is 2129201123117. The next prime is 2129201123149. The reversal of 2129201123134 is 4313211029212.

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

It is a junction number, because it is equal to n+sod(n) for n = 2129201123096 and 2129201123105.

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, 532300280782 + ... + 532300280785.

It is an arithmetic number, because the mean of its divisors is an integer number (798450421176).

Almost surely, 2^{2129201123134} is an apocalyptic number.

2129201123134 is a deficient number, since it is larger than the sum of its proper divisors (1064600561570).

2129201123134 is a wasteful number, since it uses less digits than its factorization.

2129201123134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064600561569.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 2129201123134 in words is "two trillion, one hundred twenty-nine billion, two hundred one million, one hundred twenty-three thousand, one hundred thirty-four".