100002120100011 has 24 divisors (see below), whose sum is σ = 148420720622720. Its totient is φ = 64835970708096.

The previous prime is 100002120100007. The next prime is 100002120100033. The reversal of 100002120100011 is 110001021200001.

It is a happy number.

It is not a de Polignac number, because 100002120100011 - 2² = 100002120100007 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100002120099966 and 100002120100002.

It is not an unprimeable number, because it can be changed into a prime (100002120100061) 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, 69353266 + ... + 70780503.

Almost surely, 2^{100002120100011} is an apocalyptic number.

100002120100011 is a deficient number, since it is larger than the sum of its proper divisors (48418600522709).

100002120100011 is a wasteful number, since it uses less digits than its factorization.

100002120100011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140135955 (or 140135952 counting only the distinct ones).

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

Adding to 100002120100011 its reverse (110001021200001), we get a palindrome (210003141300012).

The spelling of 100002120100011 in words is "one hundred trillion, two billion, one hundred twenty million, one hundred thousand, eleven".