2121301332123 has 8 divisors (see below), whose sum is σ = 2951375766528. Its totient is φ = 1352713892904.

The previous prime is 2121301332119. The next prime is 2121301332133. The reversal of 2121301332123 is 3212331031212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2121301332123 - 2² = 2121301332119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2121301332093 and 2121301332102.

It is not an unprimeable number, because it can be changed into a prime (2121301332133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15371748715 + ... + 15371748852.

It is an arithmetic number, because the mean of its divisors is an integer number (368921970816).

Almost surely, 2^{2121301332123} is an apocalyptic number.

2121301332123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2121301332123 is a deficient number, since it is larger than the sum of its proper divisors (830074434405).

2121301332123 is a wasteful number, since it uses less digits than its factorization.

2121301332123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30743497593.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 2121301332123 its reverse (3212331031212), we get a palindrome (5333632363335).

The spelling of 2121301332123 in words is "two trillion, one hundred twenty-one billion, three hundred one million, three hundred thirty-two thousand, one hundred twenty-three".