131121244 has 6 divisors (see below), whose sum is σ = 229462184. Its totient is φ = 65560620.

The previous prime is 131121241. The next prime is 131121247. The reversal of 131121244 is 442121131.

It is an interprime number because it is at equal distance from previous prime (131121241) and next prime (131121247).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131121241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16390152 + ... + 16390159.

Almost surely, 2^131121244 is an apocalyptic number.

It is an amenable number.

131121244 is a deficient number, since it is larger than the sum of its proper divisors (98340940).

131121244 is a wasteful number, since it uses less digits than its factorization.

131121244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32780315 (or 32780313 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 131121244 is about 11450.8184860297. The cubic root of 131121244 is about 508.0319435552.

Adding to 131121244 its reverse (442121131), we get a palindrome (573242375).

The spelling of 131121244 in words is "one hundred thirty-one million, one hundred twenty-one thousand, two hundred forty-four".