143321021131 has 2 divisors, whose sum is σ = 143321021132. Its totient is φ = 143321021130.

The previous prime is 143321021093. The next prime is 143321021143. The reversal of 143321021131 is 131120123341.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 143321021131 - 2¹⁹ = 143320496843 is a prime.

It is a super-2 number, since 2×143321021131² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (143321061131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71660510565 + 71660510566.

It is an arithmetic number, because the mean of its divisors is an integer number (71660510566).

Almost surely, 2^143321021131 is an apocalyptic number.

143321021131 is a deficient number, since it is larger than the sum of its proper divisors (1).

143321021131 is an equidigital number, since it uses as much as digits as its factorization.

143321021131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 143321021131 its reverse (131120123341), we get a palindrome (274441144472).

The spelling of 143321021131 in words is "one hundred forty-three billion, three hundred twenty-one million, twenty-one thousand, one hundred thirty-one".