101111120121111 has 8 divisors (see below), whose sum is σ = 134837844578544. Its totient is φ = 67395904538880.

The previous prime is 101111120121091. The next prime is 101111120121127. The reversal of 101111120121111 is 111121021111101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 101111120121111 - 2⁶ = 101111120121047 is a prime.

It is a super-2 number, since 2×101111120121111² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101111120121811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2877198300 + ... + 2877233441.

It is an arithmetic number, because the mean of its divisors is an integer number (16854730572318).

Almost surely, 2^{101111120121111} is an apocalyptic number.

101111120121111 is a deficient number, since it is larger than the sum of its proper divisors (33726724457433).

101111120121111 is an equidigital number, since it uses as much as digits as its factorization.

101111120121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5754437601.

The product of its (nonzero) digits is 4, while the sum is 15.

Adding to 101111120121111 its reverse (111121021111101), we get a palindrome (212232141232212).

The spelling of 101111120121111 in words is "one hundred one trillion, one hundred eleven billion, one hundred twenty million, one hundred twenty-one thousand, one hundred eleven".