131111030 has 32 divisors (see below), whose sum is σ = 250115040. Its totient is φ = 49396480.

The previous prime is 131111011. The next prime is 131111081. The reversal of 131111030 is 30111131.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6377 + ... + 17403.

It is an arithmetic number, because the mean of its divisors is an integer number (7816095).

Almost surely, 2^131111030 is an apocalyptic number.

131111030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131111030 is a deficient number, since it is larger than the sum of its proper divisors (119004010).

131111030 is a wasteful number, since it uses less digits than its factorization.

131111030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11104.

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 131111030 is about 11450.3724830243. The cubic root of 131111030 is about 508.0187517620.

Adding to 131111030 its reverse (30111131), we get a palindrome (161222161).

It can be divided in two parts, 13111 and 1030, that added together give a palindrome (14141).

The spelling of 131111030 in words is "one hundred thirty-one million, one hundred eleven thousand, thirty".