1012002001101 has 24 divisors (see below), whose sum is σ = 1799114670080. Its totient is φ = 533803252896.

The previous prime is 1012002001067. The next prime is 1012002001121. The reversal of 1012002001101 is 1011002002101.

It is a happy number.

It is not a de Polignac number, because 1012002001101 - 2⁶ = 1012002001037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012002001121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 617827021 + ... + 617828658.

Almost surely, 2^{1012002001101} is an apocalyptic number.

It is an amenable number.

1012002001101 is a deficient number, since it is larger than the sum of its proper divisors (787112668979).

1012002001101 is a wasteful number, since it uses less digits than its factorization.

1012002001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235655705 (or 1235655702 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1012002001101 its reverse (1011002002101), we get a palindrome (2023004003202).

The spelling of 1012002001101 in words is "one trillion, twelve billion, two million, one thousand, one hundred one".