131111050 has 24 divisors (see below), whose sum is σ = 278705376. Its totient is φ = 44952240.

The previous prime is 131111011. The next prime is 131111081. The reversal of 131111050 is 50111131.

It is a self number, because there is not a number n which added to its sum of digits gives 131111050.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186952 + ... + 187651.

It is an arithmetic number, because the mean of its divisors is an integer number (11612724).

Almost surely, 2^131111050 is an apocalyptic number.

131111050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131111050 is an abundant number, since it is smaller than the sum of its proper divisors (147594326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131111050 is a wasteful number, since it uses less digits than its factorization.

131111050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374622 (or 374617 counting only the distinct ones).

The product of its (nonzero) digits is 15, while the sum is 13.

The square root of 131111050 is about 11450.3733563583. The cubic root of 131111050 is about 508.0187775935.

Adding to 131111050 its reverse (50111131), we get a palindrome (181222181).

It can be divided in two parts, 13111 and 1050, that added together give a square (14161 = 119²).

The spelling of 131111050 in words is "one hundred thirty-one million, one hundred eleven thousand, fifty".