2443231212131 has 4 divisors (see below), whose sum is σ = 2443234440000. Its totient is φ = 2443227984264.

The previous prime is 2443231212109. The next prime is 2443231212167. The reversal of 2443231212131 is 1312121323442.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2443231212131 - 2¹⁰ = 2443231211107 is a prime.

It is a super-2 number, since 2×2443231212131² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2443231212094 and 2443231212103.

It is not an unprimeable number, because it can be changed into a prime (2443231212101) 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, 204065 + ... + 2219933.

It is an arithmetic number, because the mean of its divisors is an integer number (610808610000).

Almost surely, 2^{2443231212131} is an apocalyptic number.

2443231212131 is a deficient number, since it is larger than the sum of its proper divisors (3227869).

2443231212131 is a wasteful number, since it uses less digits than its factorization.

2443231212131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3227868.

The product of its digits is 6912, while the sum is 29.

Adding to 2443231212131 its reverse (1312121323442), we get a palindrome (3755352535573).

The spelling of 2443231212131 in words is "two trillion, four hundred forty-three billion, two hundred thirty-one million, two hundred twelve thousand, one hundred thirty-one".