1312011332441 has 4 divisors (see below), whose sum is σ = 1344011608884. Its totient is φ = 1280011056000.

The previous prime is 1312011332419. The next prime is 1312011332483. The reversal of 1312011332441 is 1442331102131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 528071089225 + 783940243216 = 726685^2 + 885404^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312011332441 - 2¹⁸ = 1312011070297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1312011332441.

It is not an unprimeable number, because it can be changed into a prime (1312011332141) 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, 16000138160 + ... + 16000138241.

It is an arithmetic number, because the mean of its divisors is an integer number (336002902221).

Almost surely, 2^{1312011332441} is an apocalyptic number.

It is an amenable number.

1312011332441 is a deficient number, since it is larger than the sum of its proper divisors (32000276443).

1312011332441 is an equidigital number, since it uses as much as digits as its factorization.

1312011332441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32000276442.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 1312011332441 its reverse (1442331102131), we get a palindrome (2754342434572).

The spelling of 1312011332441 in words is "one trillion, three hundred twelve billion, eleven million, three hundred thirty-two thousand, four hundred forty-one".