131211030 has 16 divisors (see below), whose sum is σ = 314906544. Its totient is φ = 34989600.

The previous prime is 131211013. The next prime is 131211043. The reversal of 131211030 is 30112131.

It is a junction number, because it is equal to n+sod(n) for n = 131210997 and 131211015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2186821 + ... + 2186880.

It is an arithmetic number, because the mean of its divisors is an integer number (19681659).

Almost surely, 2^131211030 is an apocalyptic number.

131211030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131211030 is an abundant number, since it is smaller than the sum of its proper divisors (183695514).

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

131211030 is a wasteful number, since it uses less digits than its factorization.

131211030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4373711.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 131211030 is about 11454.7383208871. The cubic root of 131211030 is about 508.1478763289.

Adding to 131211030 its reverse (30112131), we get a palindrome (161323161).

The spelling of 131211030 in words is "one hundred thirty-one million, two hundred eleven thousand, thirty".