1010002020111 has 48 divisors (see below), whose sum is σ = 1683140659200. Its totient is φ = 571665812544.

The previous prime is 1010002020077. The next prime is 1010002020179. The reversal of 1010002020111 is 1110202000101.

It is a happy number.

It is not a de Polignac number, because 1010002020111 - 2¹⁵ = 1010001987343 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 1010002020093 and 1010002020102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010002020211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23044360 + ... + 23088146.

It is an arithmetic number, because the mean of its divisors is an integer number (35065430400).

Almost surely, 2^{1010002020111} is an apocalyptic number.

1010002020111 is a deficient number, since it is larger than the sum of its proper divisors (673138639089).

1010002020111 is a wasteful number, since it uses less digits than its factorization.

1010002020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47268 (or 47265 counting only the distinct ones).

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

Adding to 1010002020111 its reverse (1110202000101), we get a palindrome (2120204020212).

The spelling of 1010002020111 in words is "one trillion, ten billion, two million, twenty thousand, one hundred eleven".