1311252234016 has 48 divisors (see below), whose sum is σ = 2651873865984. Its totient is φ = 637768145664.

The previous prime is 1311252233983. The next prime is 1311252234029. The reversal of 1311252234016 is 6104322521131.

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, 5450611 + ... + 5686093.

It is an arithmetic number, because the mean of its divisors is an integer number (55247372208).

Almost surely, 2^{1311252234016} is an apocalyptic number.

1311252234016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1311252234016 is an abundant number, since it is smaller than the sum of its proper divisors (1340621631968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311252234016 is a wasteful number, since it uses less digits than its factorization.

1311252234016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240233 (or 240225 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 1311252234016 its reverse (6104322521131), we get a palindrome (7415574755147).

The spelling of 1311252234016 in words is "one trillion, three hundred eleven billion, two hundred fifty-two million, two hundred thirty-four thousand, sixteen".