1143401131 has 2 divisors, whose sum is σ = 1143401132. Its totient is φ = 1143401130.

The previous prime is 1143401053. The next prime is 1143401167. The reversal of 1143401131 is 1311043411.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143401131 is a prime.

It is a super-2 number, since 2×1143401131² = 2614732292744158322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1143401099 and 1143401108.

It is not a weakly prime, because it can be changed into another prime (1143401731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571700565 + 571700566.

It is an arithmetic number, because the mean of its divisors is an integer number (571700566).

Almost surely, 2^1143401131 is an apocalyptic number.

1143401131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143401131 is an equidigital number, since it uses as much as digits as its factorization.

1143401131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1143401131 is about 33814.2149250873. The cubic root of 1143401131 is about 1045.6817757463.

Adding to 1143401131 its reverse (1311043411), we get a palindrome (2454444542).

The spelling of 1143401131 in words is "one billion, one hundred forty-three million, four hundred one thousand, one hundred thirty-one".