10120011011 has 4 divisors (see below), whose sum is σ = 11040012024. Its totient is φ = 9200010000.

The previous prime is 10120010993. The next prime is 10120011023. The reversal of 10120011011 is 11011002101.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10120011011 - 2²² = 10115816707 is a prime.

It is a super-3 number, since 3×10120011011³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

10120011011 is a modest number, since divided by 11011 gives 10120 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 10120011011.

It is not an unprimeable number, because it can be changed into a prime (10120011061) 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, 460000490 + ... + 460000511.

It is an arithmetic number, because the mean of its divisors is an integer number (2760003006).

Almost surely, 2^10120011011 is an apocalyptic number.

10120011011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10120011011 is a deficient number, since it is larger than the sum of its proper divisors (920001013).

10120011011 is an equidigital number, since it uses as much as digits as its factorization.

10120011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920001012.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 10120011011 its reverse (11011002101), we get a palindrome (21131013112).

It can be divided in two parts, 101200 and 11011, that added together give a palindrome (112211).

The spelling of 10120011011 in words is "ten billion, one hundred twenty million, eleven thousand, eleven".