131212234 has 8 divisors (see below), whose sum is σ = 197997408. Its totient is φ = 65213100.

The previous prime is 131212223. The next prime is 131212253. The reversal of 131212234 is 432212131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 196092 + ... + 196759.

It is an arithmetic number, because the mean of its divisors is an integer number (24749676).

Almost surely, 2^131212234 is an apocalyptic number.

131212234 is a deficient number, since it is larger than the sum of its proper divisors (66785174).

131212234 is a wasteful number, since it uses less digits than its factorization.

131212234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393020.

The product of its digits is 288, while the sum is 19.

The square root of 131212234 is about 11454.7908754372. The cubic root of 131212234 is about 508.1494305889.

Adding to 131212234 its reverse (432212131), we get a palindrome (563424365).

The spelling of 131212234 in words is "one hundred thirty-one million, two hundred twelve thousand, two hundred thirty-four".