1311232042516 has 48 divisors (see below), whose sum is σ = 2635180067520. Its totient is φ = 564609312000.

The previous prime is 1311232042507. The next prime is 1311232042621. The reversal of 1311232042516 is 6152402321131.

It is a super-2 number, since 2×1311232042516² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16195576 + ... + 16276336.

It is an arithmetic number, because the mean of its divisors is an integer number (54899584740).

Almost surely, 2^{1311232042516} is an apocalyptic number.

It is an amenable number.

1311232042516 is an abundant number, since it is smaller than the sum of its proper divisors (1323948025004).

1311232042516 is a wasteful number, since it uses less digits than its factorization.

1311232042516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100216 (or 100214 counting only the distinct ones).

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

Adding to 1311232042516 its reverse (6152402321131), we get a palindrome (7463634363647).

The spelling of 1311232042516 in words is "one trillion, three hundred eleven billion, two hundred thirty-two million, forty-two thousand, five hundred sixteen".