1213440332331 has 8 divisors (see below), whose sum is σ = 1703074150720. Its totient is φ = 766383367752.

The previous prime is 1213440332323. The next prime is 1213440332381. The reversal of 1213440332331 is 1332330443121.

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

It is not a de Polignac number, because 1213440332331 - 2³ = 1213440332323 is a prime.

It is a super-3 number, since 3×1213440332331³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213440332381) 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, 10644213385 + ... + 10644213498.

It is an arithmetic number, because the mean of its divisors is an integer number (212884268840).

Almost surely, 2^{1213440332331} is an apocalyptic number.

1213440332331 is a deficient number, since it is larger than the sum of its proper divisors (489633818389).

1213440332331 is a wasteful number, since it uses less digits than its factorization.

1213440332331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21288426905.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 1213440332331 its reverse (1332330443121), we get a palindrome (2545770775452).

The spelling of 1213440332331 in words is "one trillion, two hundred thirteen billion, four hundred forty million, three hundred thirty-two thousand, three hundred thirty-one".