2231334421 has 2 divisors, whose sum is σ = 2231334422. Its totient is φ = 2231334420.

The previous prime is 2231334403. The next prime is 2231334463. The reversal of 2231334421 is 1244331322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1945251025 + 286083396 = 44105^2 + 16914^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2231334421 is a prime.

It is a super-3 number, since 3×2231334421³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2231334491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115667210 + 1115667211.

It is an arithmetic number, because the mean of its divisors is an integer number (1115667211).

Almost surely, 2^2231334421 is an apocalyptic number.

It is an amenable number.

2231334421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231334421 is an equidigital number, since it uses as much as digits as its factorization.

2231334421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 25.

The square root of 2231334421 is about 47237.0026674005. The cubic root of 2231334421 is about 1306.7371005854.

Adding to 2231334421 its reverse (1244331322), we get a palindrome (3475665743).

The spelling of 2231334421 in words is "two billion, two hundred thirty-one million, three hundred thirty-four thousand, four hundred twenty-one".