2123334554531 has 4 divisors (see below), whose sum is σ = 2150212207200. Its totient is φ = 2096456901864.

The previous prime is 2123334554507. The next prime is 2123334554611. The reversal of 2123334554531 is 1354554333212.

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

It is a cyclic number.

It is not a de Polignac number, because 2123334554531 - 2¹⁰ = 2123334553507 is a prime.

It is a super-2 number, since 2×2123334554531² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123336554531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13438826216 + ... + 13438826373.

It is an arithmetic number, because the mean of its divisors is an integer number (537553051800).

Almost surely, 2^{2123334554531} is an apocalyptic number.

2123334554531 is a deficient number, since it is larger than the sum of its proper divisors (26877652669).

2123334554531 is an equidigital number, since it uses as much as digits as its factorization.

2123334554531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26877652668.

The product of its digits is 648000, while the sum is 41.

Adding to 2123334554531 its reverse (1354554333212), we get a palindrome (3477888887743).

The spelling of 2123334554531 in words is "two trillion, one hundred twenty-three billion, three hundred thirty-four million, five hundred fifty-four thousand, five hundred thirty-one".