223402042143 has 20 divisors (see below), whose sum is σ = 381398901840. Its totient is φ = 127658309472.

The previous prime is 223402042117. The next prime is 223402042151. The reversal of 223402042143 is 341240204322.

223402042143 is a `hidden beast` number, since 2 + 234 + 0 + 2 + 0 + 421 + 4 + 3 = 666.

It is not a de Polignac number, because 223402042143 - 2⁵ = 223402042111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223402042153) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 197002998 + ... + 197004131.

It is an arithmetic number, because the mean of its divisors is an integer number (19069945092).

Almost surely, 2^223402042143 is an apocalyptic number.

223402042143 is a deficient number, since it is larger than the sum of its proper divisors (157996859697).

223402042143 is an equidigital number, since it uses as much as digits as its factorization.

223402042143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394007148 (or 394007139 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 223402042143 its reverse (341240204322), we get a palindrome (564642246465).

The spelling of 223402042143 in words is "two hundred twenty-three billion, four hundred two million, forty-two thousand, one hundred forty-three".