1312241351530 has 16 divisors (see below), whose sum is σ = 2362047611400. Its totient is φ = 524893612032.

The previous prime is 1312241351527. The next prime is 1312241351537. The reversal of 1312241351530 is 351531422131.

It can be written as a sum of positive squares in 4 ways, for example, as 870897701961 + 441343649569 = 933219^2 + 664337^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1312241351492 and 1312241351501.

It is not an unprimeable number, because it can be changed into a prime (1312241351537) 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, 2923546 + ... + 3342394.

Almost surely, 2^{1312241351530} is an apocalyptic number.

1312241351530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312241351530 is a deficient number, since it is larger than the sum of its proper divisors (1049806259870).

1312241351530 is a wasteful number, since it uses less digits than its factorization.

1312241351530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732153.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 1312241351530 its reverse (351531422131), we get a palindrome (1663772773661).

The spelling of 1312241351530 in words is "one trillion, three hundred twelve billion, two hundred forty-one million, three hundred fifty-one thousand, five hundred thirty".