1241311631 has 16 divisors (see below), whose sum is σ = 1480887360. Its totient is φ = 1018241280.

The previous prime is 1241311609. The next prime is 1241311639. The reversal of 1241311631 is 1361131421.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1241311631 is a prime.

It is a super-2 number, since 2×1241311631² = 3081709130511760322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1241311597 and 1241311606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241311639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23486 + ... + 55083.

It is an arithmetic number, because the mean of its divisors is an integer number (92555460).

Almost surely, 2^1241311631 is an apocalyptic number.

1241311631 is a deficient number, since it is larger than the sum of its proper divisors (239575729).

1241311631 is an equidigital number, since it uses as much as digits as its factorization.

1241311631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78674.

The product of its digits is 432, while the sum is 23.

The square root of 1241311631 is about 35232.2527096977. The cubic root of 1241311631 is about 1074.7157369173.

The spelling of 1241311631 in words is "one billion, two hundred forty-one million, three hundred eleven thousand, six hundred thirty-one".