1311501016 has 16 divisors (see below), whose sum is σ = 2810359440. Its totient is φ = 562071840.

The previous prime is 1311501007. The next prime is 1311501043. The reversal of 1311501016 is 6101051131.

It is a junction number, because it is equal to n+sod(n) for n = 1311500984 and 1311501002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11709775 + ... + 11709886.

It is an arithmetic number, because the mean of its divisors is an integer number (175647465).

Almost surely, 2^1311501016 is an apocalyptic number.

It is an amenable number.

1311501016 is an abundant number, since it is smaller than the sum of its proper divisors (1498858424).

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

1311501016 is a wasteful number, since it uses less digits than its factorization.

1311501016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23419674 (or 23419670 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 19.

The square root of 1311501016 is about 36214.6519519379. The cubic root of 1311501016 is about 1094.6019322724.

Adding to 1311501016 its reverse (6101051131), we get a palindrome (7412552147).

The spelling of 1311501016 in words is "one billion, three hundred eleven million, five hundred one thousand, sixteen".