2231133631 has 2 divisors, whose sum is σ = 2231133632. Its totient is φ = 2231133630.

The previous prime is 2231133551. The next prime is 2231133637. The reversal of 2231133631 is 1363311322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2231133631 - 2⁹ = 2231133119 is a prime.

It is a super-3 number, since 3×2231133631³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2231133596 and 2231133605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2231133637) 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 as a sum of consecutive naturals, namely, 1115566815 + 1115566816.

It is an arithmetic number, because the mean of its divisors is an integer number (1115566816).

Almost surely, 2^2231133631 is an apocalyptic number.

2231133631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231133631 is an equidigital number, since it uses as much as digits as its factorization.

2231133631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 25.

The square root of 2231133631 is about 47234.8772730490. The cubic root of 2231133631 is about 1306.6979031721.

Adding to 2231133631 its reverse (1363311322), we get a palindrome (3594444953).

The spelling of 2231133631 in words is "two billion, two hundred thirty-one million, one hundred thirty-three thousand, six hundred thirty-one".