131111055 has 80 divisors (see below), whose sum is σ = 252473760. Its totient is φ = 64862208.

The previous prime is 131111011. The next prime is 131111081. The reversal of 131111055 is 550111131.

It is not a de Polignac number, because 131111055 - 2⁷ = 131110927 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 943176 + ... + 943314.

It is an arithmetic number, because the mean of its divisors is an integer number (3155922).

Almost surely, 2^131111055 is an apocalyptic number.

131111055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131111055 is a deficient number, since it is larger than the sum of its proper divisors (121362705).

131111055 is a wasteful number, since it uses less digits than its factorization.

131111055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310 (or 301 counting only the distinct ones).

The product of its (nonzero) digits is 75, while the sum is 18.

The square root of 131111055 is about 11450.3735746918. The cubic root of 131111055 is about 508.0187840513.

Adding to 131111055 its reverse (550111131), we get a palindrome (681222186).

The spelling of 131111055 in words is "one hundred thirty-one million, one hundred eleven thousand, fifty-five".