402243231043 has 4 divisors (see below), whose sum is σ = 405802905768. Its totient is φ = 398683556320.

The previous prime is 402243231041. The next prime is 402243231077. The reversal of 402243231043 is 340132342204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 402243231043 - 2¹ = 402243231041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402243231041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1779837193 + ... + 1779837418.

It is an arithmetic number, because the mean of its divisors is an integer number (101450726442).

Almost surely, 2^402243231043 is an apocalyptic number.

402243231043 is a deficient number, since it is larger than the sum of its proper divisors (3559674725).

402243231043 is a wasteful number, since it uses less digits than its factorization.

402243231043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3559674724.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 402243231043 its reverse (340132342204), we get a palindrome (742375573247).

The spelling of 402243231043 in words is "four hundred two billion, two hundred forty-three million, two hundred thirty-one thousand, forty-three".