1316115042 has 64 divisors (see below), whose sum is σ = 2918799360. Its totient is φ = 392312000.

The previous prime is 1316115041. The next prime is 1316115067. The reversal of 1316115042 is 2405116131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1316115041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1192663 + ... + 1193765.

It is an arithmetic number, because the mean of its divisors is an integer number (45606240).

Almost surely, 2^1316115042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1316115042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1459399680).

1316115042 is an abundant number, since it is smaller than the sum of its proper divisors (1602684318).

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

1316115042 is a wasteful number, since it uses less digits than its factorization.

1316115042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1316115042 is about 36278.2998774750. The cubic root of 1316115042 is about 1095.8840790828.

It can be divided in two parts, 13161 and 15042, that added together give a triangular number (28203 = T₂₃₇).

The spelling of 1316115042 in words is "one billion, three hundred sixteen million, one hundred fifteen thousand, forty-two".