131211332 has 12 divisors (see below), whose sum is σ = 262422720. Its totient is φ = 56233416.

The previous prime is 131211323. The next prime is 131211347. The reversal of 131211332 is 233112131.

131211332 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 131211332.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2343032 + ... + 2343087.

It is an arithmetic number, because the mean of its divisors is an integer number (21868560).

Almost surely, 2^131211332 is an apocalyptic number.

It is an amenable number.

131211332 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131211332 is a wasteful number, since it uses less digits than its factorization.

131211332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4686130 (or 4686128 counting only the distinct ones).

The product of its digits is 108, while the sum is 17.

The square root of 131211332 is about 11454.7515031973. The cubic root of 131211332 is about 508.1482661857.

Adding to 131211332 its reverse (233112131), we get a palindrome (364323463).

The spelling of 131211332 in words is "one hundred thirty-one million, two hundred eleven thousand, three hundred thirty-two".