10102120112111 has 4 divisors (see below), whose sum is σ = 10124033605224. Its totient is φ = 10080206619000.

The previous prime is 10102120112101. The next prime is 10102120112159. The reversal of 10102120112111 is 11121102120101.

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-10102120112111 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 (10102120112101) 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, 10956745865 + ... + 10956746786.

It is an arithmetic number, because the mean of its divisors is an integer number (2531008401306).

Almost surely, 2^{10102120112111} is an apocalyptic number.

10102120112111 is a deficient number, since it is larger than the sum of its proper divisors (21913493113).

10102120112111 is an equidigital number, since it uses as much as digits as its factorization.

10102120112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21913493112.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 10102120112111 its reverse (11121102120101), we get a palindrome (21223222232212).

The spelling of 10102120112111 in words is "ten trillion, one hundred two billion, one hundred twenty million, one hundred twelve thousand, one hundred eleven".