2123420104331 has 4 divisors (see below), whose sum is σ = 2126210407464. Its totient is φ = 2120629801200.

The previous prime is 2123420104319. The next prime is 2123420104349. The reversal of 2123420104331 is 1334010243212.

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-2123420104331 is a prime.

It is a super-2 number, since 2×2123420104331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2123420104331.

It is not an unprimeable number, because it can be changed into a prime (2123420104231) 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, 1395150425 + ... + 1395151946.

It is an arithmetic number, because the mean of its divisors is an integer number (531552601866).

Almost surely, 2^{2123420104331} is an apocalyptic number.

2123420104331 is a deficient number, since it is larger than the sum of its proper divisors (2790303133).

2123420104331 is an equidigital number, since it uses as much as digits as its factorization.

2123420104331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790303132.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 2123420104331 its reverse (1334010243212), we get a palindrome (3457430347543).

The spelling of 2123420104331 in words is "two trillion, one hundred twenty-three billion, four hundred twenty million, one hundred four thousand, three hundred thirty-one".