4131242621 has 12 divisors (see below), whose sum is σ = 4687439232. Its totient is φ = 3634521000.

The previous prime is 4131242617. The next prime is 4131242651. The reversal of 4131242621 is 1262421314.

It is not a de Polignac number, because 4131242621 - 2² = 4131242617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4131242651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 546935 + ... + 554436.

It is an arithmetic number, because the mean of its divisors is an integer number (390619936).

Almost surely, 2^4131242621 is an apocalyptic number.

It is an amenable number.

4131242621 is a deficient number, since it is larger than the sum of its proper divisors (556196611).

4131242621 is a wasteful number, since it uses less digits than its factorization.

4131242621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101424 (or 1101413 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 4131242621 is about 64274.7432589194. The cubic root of 4131242621 is about 1604.5757843414.

Adding to 4131242621 its reverse (1262421314), we get a palindrome (5393663935).

The spelling of 4131242621 in words is "four billion, one hundred thirty-one million, two hundred forty-two thousand, six hundred twenty-one".