143222401233 has 20 divisors (see below), whose sum is σ = 219731936820. Its totient is φ = 92901015072.

The previous prime is 143222401213. The next prime is 143222401247. The reversal of 143222401233 is 332104222341.

143222401233 is a `hidden beast` number, since 1 + 4 + 3 + 2 + 22 + 401 + 233 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 70361276049 + 72861125184 = 265257^2 + 269928^2 .

It is a de Polignac number, because none of the positive numbers 2^k-143222401233 is a prime.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 143222401197 and 143222401206.

It is not an unprimeable number, because it can be changed into a prime (143222401213) 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, 23891298 + ... + 23897291.

It is an arithmetic number, because the mean of its divisors is an integer number (10986596841).

Almost surely, 2^143222401233 is an apocalyptic number.

It is an amenable number.

143222401233 is a deficient number, since it is larger than the sum of its proper divisors (76509535587).

143222401233 is an equidigital number, since it uses as much as digits as its factorization.

143222401233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47788638 (or 47788629 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 143222401233 its reverse (332104222341), we get a palindrome (475326623574).

The spelling of 143222401233 in words is "one hundred forty-three billion, two hundred twenty-two million, four hundred one thousand, two hundred thirty-three".