1131012011015 has 16 divisors (see below), whose sum is σ = 1437132932928. Its totient is φ = 851536697856.

The previous prime is 1131012011011. The next prime is 1131012011021. The reversal of 1131012011015 is 5101102101311.

It is a cyclic number.

It is not a de Polignac number, because 1131012011015 - 2² = 1131012011011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1131012010984 and 1131012011002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131012011011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1145909 + ... + 1890801.

It is an arithmetic number, because the mean of its divisors is an integer number (89820808308).

Almost surely, 2^{1131012011015} is an apocalyptic number.

1131012011015 is a deficient number, since it is larger than the sum of its proper divisors (306120921913).

1131012011015 is a wasteful number, since it uses less digits than its factorization.

1131012011015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762778.

The product of its (nonzero) digits is 30, while the sum is 17.

Adding to 1131012011015 its reverse (5101102101311), we get a palindrome (6232114112326).

The spelling of 1131012011015 in words is "one trillion, one hundred thirty-one billion, twelve million, eleven thousand, fifteen".