1351013213444 has 24 divisors (see below), whose sum is σ = 2411629112088. Its totient is φ = 662005393920.

The previous prime is 1351013213437. The next prime is 1351013213453. The reversal of 1351013213444 is 4443123101531.

It can be written as a sum of positive squares in 4 ways, for example, as 811552343044 + 539460870400 = 900862^2 + 734480^2 .

It is a super-2 number, since 2×1351013213444² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1351013213444.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3447317 + ... + 3819164.

It is an arithmetic number, because the mean of its divisors is an integer number (100484546337).

Almost surely, 2^{1351013213444} is an apocalyptic number.

It is an amenable number.

1351013213444 is a deficient number, since it is larger than the sum of its proper divisors (1060615898644).

1351013213444 is a wasteful number, since it uses less digits than its factorization.

1351013213444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7267415 (or 7267413 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 1351013213444 its reverse (4443123101531), we get a palindrome (5794136314975).

The spelling of 1351013213444 in words is "one trillion, three hundred fifty-one billion, thirteen million, two hundred thirteen thousand, four hundred forty-four".