1325011612443 has 16 divisors (see below), whose sum is σ = 1853146238976. Its totient is φ = 840511189760.

The previous prime is 1325011612439. The next prime is 1325011612447. The reversal of 1325011612443 is 3442161105231.

It is an interprime number because it is at equal distance from previous prime (1325011612439) and next prime (1325011612447).

It is a cyclic number.

It is not a de Polignac number, because 1325011612443 - 2² = 1325011612439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1325011612447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50256630 + ... + 50282987.

It is an arithmetic number, because the mean of its divisors is an integer number (115821639936).

Almost surely, 2^{1325011612443} is an apocalyptic number.

1325011612443 is a deficient number, since it is larger than the sum of its proper divisors (528134626533).

1325011612443 is a wasteful number, since it uses less digits than its factorization.

1325011612443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100539834.

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 1325011612443 its reverse (3442161105231), we get a palindrome (4767172717674).

The spelling of 1325011612443 in words is "one trillion, three hundred twenty-five billion, eleven million, six hundred twelve thousand, four hundred forty-three".