2312121131333 has 8 divisors (see below), whose sum is σ = 2502616080888. Its totient is φ = 2123431821504.

The previous prime is 2312121131303. The next prime is 2312121131381. The reversal of 2312121131333 is 3331311212132.

It can be written as a sum of positive squares in 4 ways, for example, as 473650897729 + 1838470233604 = 688223^2 + 1355902^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2312121131333 - 2¹⁶ = 2312121065797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312121131303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451407266 + ... + 451412387.

It is an arithmetic number, because the mean of its divisors is an integer number (312827010111).

Almost surely, 2^{2312121131333} is an apocalyptic number.

It is an amenable number.

2312121131333 is a deficient number, since it is larger than the sum of its proper divisors (190494949555).

2312121131333 is a wasteful number, since it uses less digits than its factorization.

2312121131333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902819863.

The product of its digits is 1944, while the sum is 26.

Adding to 2312121131333 its reverse (3331311212132), we get a palindrome (5643432343465).

The spelling of 2312121131333 in words is "two trillion, three hundred twelve billion, one hundred twenty-one million, one hundred thirty-one thousand, three hundred thirty-three".