1011102020001 has 16 divisors (see below), whose sum is σ = 1498465729920. Its totient is φ = 673826448240.

The previous prime is 1011102019999. The next prime is 1011102020003. The reversal of 1011102020001 is 1000202011101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1011102019999) and next prime (1011102020003).

It is not a de Polignac number, because 1011102020001 - 2¹ = 1011102019999 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (1011102020003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6633390 + ... + 6784103.

It is an arithmetic number, because the mean of its divisors is an integer number (93654108120).

Almost surely, 2^{1011102020001} is an apocalyptic number.

It is an amenable number.

1011102020001 is a deficient number, since it is larger than the sum of its proper divisors (487363709919).

1011102020001 is a wasteful number, since it uses less digits than its factorization.

1011102020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13420293 (or 13420287 counting only the distinct ones).

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

Adding to 1011102020001 its reverse (1000202011101), we get a palindrome (2011304031102).

The spelling of 1011102020001 in words is "one trillion, eleven billion, one hundred two million, twenty thousand, one".