3121420032243 has 6 divisors (see below), whose sum is σ = 4508717824364. Its totient is φ = 2080946688156.

The previous prime is 3121420032233. The next prime is 3121420032251. The reversal of 3121420032243 is 3422300241213.

3121420032243 is a `hidden beast` number, since 3 + 1 + 214 + 200 + 3 + 2 + 243 = 666.

3121420032243 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3121420032243 - 2²⁶ = 3121352923379 is a prime.

It is a super-2 number, since 2×3121420032243² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121420032233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 173412224005 + ... + 173412224022.

Almost surely, 2^{3121420032243} is an apocalyptic number.

3121420032243 is a deficient number, since it is larger than the sum of its proper divisors (1387297792121).

3121420032243 is a wasteful number, since it uses less digits than its factorization.

3121420032243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346824448033 (or 346824448030 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 3121420032243 its reverse (3422300241213), we get a palindrome (6543720273456).

The spelling of 3121420032243 in words is "three trillion, one hundred twenty-one billion, four hundred twenty million, thirty-two thousand, two hundred forty-three".