1011012112005 has 96 divisors (see below), whose sum is σ = 1911277057536. Its totient is φ = 454928132736.

The previous prime is 1011012111973. The next prime is 1011012112013. The reversal of 1011012112005 is 5002112101101.

It is not a de Polignac number, because 1011012112005 - 2⁵ = 1011012111973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 70265422 + ... + 70279808.

It is an arithmetic number, because the mean of its divisors is an integer number (19909136016).

Almost surely, 2^{1011012112005} is an apocalyptic number.

1011012112005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1011012112005 is a deficient number, since it is larger than the sum of its proper divisors (900264945531).

1011012112005 is a wasteful number, since it uses less digits than its factorization.

1011012112005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15903 (or 15896 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 15.

Adding to 1011012112005 its reverse (5002112101101), we get a palindrome (6013124213106).

The spelling of 1011012112005 in words is "one trillion, eleven billion, twelve million, one hundred twelve thousand, five".