631242301 has 4 divisors (see below), whose sum is σ = 664465600. Its totient is φ = 598019004.

The previous prime is 631242299. The next prime is 631242323. The reversal of 631242301 is 103242136.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 631242301 - 2¹ = 631242299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631242361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16611621 + ... + 16611658.

It is an arithmetic number, because the mean of its divisors is an integer number (166116400).

Almost surely, 2^631242301 is an apocalyptic number.

It is an amenable number.

631242301 is a deficient number, since it is larger than the sum of its proper divisors (33223299).

631242301 is a wasteful number, since it uses less digits than its factorization.

631242301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33223298.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 631242301 is about 25124.5358365085. The cubic root of 631242301 is about 857.8249983134.

Adding to 631242301 its reverse (103242136), we get a palindrome (734484437).

The spelling of 631242301 in words is "six hundred thirty-one million, two hundred forty-two thousand, three hundred one".