1143023131 has 2 divisors, whose sum is σ = 1143023132. Its totient is φ = 1143023130.

The previous prime is 1143023099. The next prime is 1143023143. The reversal of 1143023131 is 1313203411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1143023131 - 2⁵ = 1143023099 is a prime.

It is a super-4 number, since 4×1143023131⁴ (a number of 37 digits) contains 4444 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 = 1143023099 and 1143023108.

It is not a weakly prime, because it can be changed into another prime (1143023171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571511565 + 571511566.

It is an arithmetic number, because the mean of its divisors is an integer number (571511566).

Almost surely, 2^1143023131 is an apocalyptic number.

1143023131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143023131 is an equidigital number, since it uses as much as digits as its factorization.

1143023131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1143023131 is about 33808.6250977469. The cubic root of 1143023131 is about 1045.5665314790.

Adding to 1143023131 its reverse (1313203411), we get a palindrome (2456226542).

The spelling of 1143023131 in words is "one billion, one hundred forty-three million, twenty-three thousand, one hundred thirty-one".