1316255232542 has 4 divisors (see below), whose sum is σ = 1974382848816. Its totient is φ = 658127616270.

The previous prime is 1316255232527. The next prime is 1316255232569. The reversal of 1316255232542 is 2452325526131.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1316255232542.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 329063808134 + ... + 329063808137.

It is an arithmetic number, because the mean of its divisors is an integer number (493595712204).

Almost surely, 2^{1316255232542} is an apocalyptic number.

1316255232542 is a deficient number, since it is larger than the sum of its proper divisors (658127616274).

1316255232542 is an equidigital number, since it uses as much as digits as its factorization.

1316255232542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658127616273.

The product of its digits is 432000, while the sum is 41.

The spelling of 1316255232542 in words is "one trillion, three hundred sixteen billion, two hundred fifty-five million, two hundred thirty-two thousand, five hundred forty-two".