2312121131224 has 8 divisors (see below), whose sum is σ = 4335227121060. Its totient is φ = 1156060565608.

The previous prime is 2312121131197. The next prime is 2312121131249. The reversal of 2312121131224 is 4221311212132.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144507570694 + ... + 144507570709.

Almost surely, 2^{2312121131224} is an apocalyptic number.

It is an amenable number.

2312121131224 is a deficient number, since it is larger than the sum of its proper divisors (2023105989836).

2312121131224 is a wasteful number, since it uses less digits than its factorization.

2312121131224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289015141409 (or 289015141405 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

Adding to 2312121131224 its reverse (4221311212132), we get a palindrome (6533432343356).

The spelling of 2312121131224 in words is "two trillion, three hundred twelve billion, one hundred twenty-one million, one hundred thirty-one thousand, two hundred twenty-four".