1311003031330 has 16 divisors (see below), whose sum is σ = 2363419259064. Its totient is φ = 523598145280.

The previous prime is 1311003031319. The next prime is 1311003031361. The reversal of 1311003031330 is 331303001131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 618517758681 + 692485272649 = 786459^2 + 832157^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1311003031298 and 1311003031307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100376551 + ... + 100389610.

Almost surely, 2^{1311003031330} is an apocalyptic number.

1311003031330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311003031330 is a deficient number, since it is larger than the sum of its proper divisors (1052416227734).

1311003031330 is a wasteful number, since it uses less digits than its factorization.

1311003031330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200766821.

The product of its (nonzero) digits is 243, while the sum is 19.

Adding to 1311003031330 its reverse (331303001131), we get a palindrome (1642306032461).

The spelling of 1311003031330 in words is "one trillion, three hundred eleven billion, three million, thirty-one thousand, three hundred thirty".