100120100012011 has 4 divisors (see below), whose sum is σ = 101761413127024. Its totient is φ = 98478786897000.

The previous prime is 100120100011991. The next prime is 100120100012027. The reversal of 100120100012011 is 110210001021001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100120100012011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100120100018011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 820656557415 + ... + 820656557536.

It is an arithmetic number, because the mean of its divisors is an integer number (25440353281756).

Almost surely, 2^{100120100012011} is an apocalyptic number.

100120100012011 is a deficient number, since it is larger than the sum of its proper divisors (1641313115013).

100120100012011 is an equidigital number, since it uses as much as digits as its factorization.

100120100012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641313115012.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 100120100012011 its reverse (110210001021001), we get a palindrome (210330101033012).

The spelling of 100120100012011 in words is "one hundred trillion, one hundred twenty billion, one hundred million, twelve thousand, eleven".