2123000011331 has 4 divisors (see below), whose sum is σ = 2123670364992. Its totient is φ = 2122329657672.

The previous prime is 2123000011309. The next prime is 2123000011441. The reversal of 2123000011331 is 1331100003212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2123000011331 is a prime.

It is a super-3 number, since 3×2123000011331³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123000011831) 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, 335172080 + ... + 335178413.

It is an arithmetic number, because the mean of its divisors is an integer number (530917591248).

Almost surely, 2^{2123000011331} is an apocalyptic number.

2123000011331 is a deficient number, since it is larger than the sum of its proper divisors (670353661).

2123000011331 is an equidigital number, since it uses as much as digits as its factorization.

2123000011331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670353660.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 2123000011331 its reverse (1331100003212), we get a palindrome (3454100014543).

The spelling of 2123000011331 in words is "two trillion, one hundred twenty-three billion, eleven thousand, three hundred thirty-one".