42043124402 has 16 divisors (see below), whose sum is σ = 63350628120. Its totient is φ = 20926292352.

The previous prime is 42043124401. The next prime is 42043124407. The reversal of 42043124402 is 20442134024.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18265792801 + 23777331601 = 135151^2 + 154199^2 .

It is not an unprimeable number, because it can be changed into a prime (42043124401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2588924 + ... + 2605112.

Almost surely, 2^42043124402 is an apocalyptic number.

42043124402 is a deficient number, since it is larger than the sum of its proper divisors (21307503718).

42043124402 is a wasteful number, since it uses less digits than its factorization.

42043124402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21997.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 42043124402 its reverse (20442134024), we get a palindrome (62485258426).

The spelling of 42043124402 in words is "forty-two billion, forty-three million, one hundred twenty-four thousand, four hundred two".