10120011111109 has 4 divisors (see below), whose sum is σ = 10162002858700. Its totient is φ = 10078019363520.

The previous prime is 10120011111061. The next prime is 10120011111149. The reversal of 10120011111109 is 90111111002101.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5372558422884 + 4747452688225 = 2317878^2 + 2178865^2 .

It is a cyclic number.

It is not a de Polignac number, because 10120011111109 - 2⁷ = 10120011110981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120011111149) 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, 20995873434 + ... + 20995873915.

It is an arithmetic number, because the mean of its divisors is an integer number (2540500714675).

Almost surely, 2^{10120011111109} is an apocalyptic number.

It is an amenable number.

10120011111109 is a deficient number, since it is larger than the sum of its proper divisors (41991747591).

10120011111109 is an equidigital number, since it uses as much as digits as its factorization.

10120011111109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41991747590.

The product of its (nonzero) digits is 18, while the sum is 19.

The spelling of 10120011111109 in words is "ten trillion, one hundred twenty billion, eleven million, one hundred eleven thousand, one hundred nine".