131121305150111 has 4 divisors (see below), whose sum is σ = 131130979870752. Its totient is φ = 131111630429472.

The previous prime is 131121305150081. The next prime is 131121305150131. The reversal of 131121305150111 is 111051503121131.

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 131121305150111 - 2⁴⁶ = 60752560972447 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 (131121305150131) 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, 4837339991 + ... + 4837367096.

It is an arithmetic number, because the mean of its divisors is an integer number (32782744967688).

Almost surely, 2^{131121305150111} is an apocalyptic number.

131121305150111 is a deficient number, since it is larger than the sum of its proper divisors (9674720641).

131121305150111 is an equidigital number, since it uses as much as digits as its factorization.

131121305150111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9674720640.

The product of its (nonzero) digits is 450, while the sum is 26.

Adding to 131121305150111 its reverse (111051503121131), we get a palindrome (242172808271242).

The spelling of 131121305150111 in words is "one hundred thirty-one trillion, one hundred twenty-one billion, three hundred five million, one hundred fifty thousand, one hundred eleven".