3113432381 has 2 divisors, whose sum is σ = 3113432382. Its totient is φ = 3113432380.

The previous prime is 3113432317. The next prime is 3113432401. The reversal of 3113432381 is 1832343113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2968615225 + 144817156 = 54485^2 + 12034^2 .

It is a cyclic number.

It is not a de Polignac number, because 3113432381 - 2⁶ = 3113432317 is a prime.

It is a super-2 number, since 2×3113432381² = 19386922382118658322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3113432281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1556716190 + 1556716191.

It is an arithmetic number, because the mean of its divisors is an integer number (1556716191).

Almost surely, 2^3113432381 is an apocalyptic number.

It is an amenable number.

3113432381 is a deficient number, since it is larger than the sum of its proper divisors (1).

3113432381 is an equidigital number, since it uses as much as digits as its factorization.

3113432381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 29.

The square root of 3113432381 is about 55798.1395836815. The cubic root of 3113432381 is about 1460.2026961025.

Adding to 3113432381 its reverse (1832343113), we get a palindrome (4945775494).

The spelling of 3113432381 in words is "three billion, one hundred thirteen million, four hundred thirty-two thousand, three hundred eighty-one".