1143921357331 has 2 divisors, whose sum is σ = 1143921357332. Its totient is φ = 1143921357330.

The previous prime is 1143921357311. The next prime is 1143921357343. The reversal of 1143921357331 is 1337531293411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1143921357331 - 2²⁵ = 1143887802899 is a prime.

It is a super-2 number, since 2×1143921357331² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1143921357311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571960678665 + 571960678666.

It is an arithmetic number, because the mean of its divisors is an integer number (571960678666).

Almost surely, 2^{1143921357331} is an apocalyptic number.

1143921357331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143921357331 is an equidigital number, since it uses as much as digits as its factorization.

1143921357331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 43.

The spelling of 1143921357331 in words is "one trillion, one hundred forty-three billion, nine hundred twenty-one million, three hundred fifty-seven thousand, three hundred thirty-one".