1311264355430 has 16 divisors (see below), whose sum is σ = 2360891686464. Its totient is φ = 524368887360.

The previous prime is 1311264355403. The next prime is 1311264355451. The reversal of 1311264355430 is 345534621131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17066606 + ... + 17143265.

It is an arithmetic number, because the mean of its divisors is an integer number (147555730404).

Almost surely, 2^{1311264355430} is an apocalyptic number.

1311264355430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311264355430 is a deficient number, since it is larger than the sum of its proper divisors (1049627331034).

1311264355430 is a wasteful number, since it uses less digits than its factorization.

1311264355430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34213711.

The product of its (nonzero) digits is 129600, while the sum is 38.

Adding to 1311264355430 its reverse (345534621131), we get a palindrome (1656798976561).

The spelling of 1311264355430 in words is "one trillion, three hundred eleven billion, two hundred sixty-four million, three hundred fifty-five thousand, four hundred thirty".