1011171070015 has 16 divisors (see below), whose sum is σ = 1214672163840. Its totient is φ = 808092524800.

The previous prime is 1011171070001. The next prime is 1011171070061. The reversal of 1011171070015 is 5100701711101.

It is a happy number.

It is not a de Polignac number, because 1011171070015 - 2²³ = 1011162681407 is a prime.

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, 43594041 + ... + 43617229.

It is an arithmetic number, because the mean of its divisors is an integer number (75917010240).

Almost surely, 2^{1011171070015} is an apocalyptic number.

1011171070015 is a deficient number, since it is larger than the sum of its proper divisors (203501093825).

1011171070015 is a wasteful number, since it uses less digits than its factorization.

1011171070015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31922.

The product of its (nonzero) digits is 245, while the sum is 25.

Adding to 1011171070015 its reverse (5100701711101), we get a palindrome (6111872781116).

The spelling of 1011171070015 in words is "one trillion, eleven billion, one hundred seventy-one million, seventy thousand, fifteen".