1316542021345 has 16 divisors (see below), whose sum is σ = 1581035662080. Its totient is φ = 1052443756800.

The previous prime is 1316542021303. The next prime is 1316542021357. The reversal of 1316542021345 is 5431202456131.

It is not a de Polignac number, because 1316542021345 - 2²³ = 1316533632737 is a prime.

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, 42329250 + ... + 42360340.

It is an arithmetic number, because the mean of its divisors is an integer number (98814728880).

Almost surely, 2^{1316542021345} is an apocalyptic number.

It is an amenable number.

1316542021345 is a deficient number, since it is larger than the sum of its proper divisors (264493640735).

1316542021345 is a wasteful number, since it uses less digits than its factorization.

1316542021345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37176.

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 1316542021345 its reverse (5431202456131), we get a palindrome (6747744477476).

The spelling of 1316542021345 in words is "one trillion, three hundred sixteen billion, five hundred forty-two million, twenty-one thousand, three hundred forty-five".