2143022412321 has 24 divisors (see below), whose sum is σ = 3565543614464. Its totient is φ = 1214941835520.

The previous prime is 2143022412319. The next prime is 2143022412337. The reversal of 2143022412321 is 1232142203412.

2143022412321 is a `hidden beast` number, since 2 + 1 + 4 + 302 + 24 + 12 + 321 = 666.

It is not a de Polignac number, because 2143022412321 - 2¹ = 2143022412319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143022412361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133914160 + ... + 133930161.

Almost surely, 2^{2143022412321} is an apocalyptic number.

2143022412321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2143022412321 is a deficient number, since it is larger than the sum of its proper divisors (1422521202143).

2143022412321 is a wasteful number, since it uses less digits than its factorization.

2143022412321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267844461 (or 267844458 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 2143022412321 its reverse (1232142203412), we get a palindrome (3375164615733).

The spelling of 2143022412321 in words is "two trillion, one hundred forty-three billion, twenty-two million, four hundred twelve thousand, three hundred twenty-one".