131102120011 has 6 divisors (see below), whose sum is σ = 135778772012. Its totient is φ = 126581356440.

The previous prime is 131102119957. The next prime is 131102120041. The reversal of 131102120011 is 110021201131.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-131102120011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131102119973 and 131102120000.

It is not an unprimeable number, because it can be changed into a prime (131102120041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77943345 + ... + 77945026.

Almost surely, 2^131102120011 is an apocalyptic number.

131102120011 is a deficient number, since it is larger than the sum of its proper divisors (4676652001).

131102120011 is an equidigital number, since it uses as much as digits as its factorization.

131102120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155888429 (or 155888400 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 131102120011 its reverse (110021201131), we get a palindrome (241123321142).

The spelling of 131102120011 in words is "one hundred thirty-one billion, one hundred two million, one hundred twenty thousand, eleven".