11311120123101 has 12 divisors (see below), whose sum is σ = 16779859882812. Its totient is φ = 7336942782336.

The previous prime is 11311120123099. The next prime is 11311120123109. The reversal of 11311120123101 is 10132102111311.

11311120123101 is a `hidden beast` number, since 1 + 1 + 311 + 120 + 1 + 231 + 0 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3904176858201 + 7406943264900 = 1975899^2 + 2721570^2 .

It is not a de Polignac number, because 11311120123101 - 2¹ = 11311120123099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311120123109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16983663516 + ... + 16983664181.

It is an arithmetic number, because the mean of its divisors is an integer number (1398321656901).

Almost surely, 2^{11311120123101} is an apocalyptic number.

It is an amenable number.

11311120123101 is a deficient number, since it is larger than the sum of its proper divisors (5468739759711).

11311120123101 is a wasteful number, since it uses less digits than its factorization.

11311120123101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33967327740 (or 33967327737 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 11311120123101 its reverse (10132102111311), we get a palindrome (21443222234412).

The spelling of 11311120123101 in words is "eleven trillion, three hundred eleven billion, one hundred twenty million, one hundred twenty-three thousand, one hundred one".