1020404124442 has 8 divisors (see below), whose sum is σ = 1620641844756. Its totient is φ = 480190176192.

The previous prime is 1020404124431. The next prime is 1020404124463. The reversal of 1020404124442 is 2444214040201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1011213259281 + 9190865161 = 1005591^2 + 95869^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1020404124442² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1020404124442.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15005942973 + ... + 15005943040.

Almost surely, 2^{1020404124442} is an apocalyptic number.

1020404124442 is a deficient number, since it is larger than the sum of its proper divisors (600237720314).

1020404124442 is a wasteful number, since it uses less digits than its factorization.

1020404124442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30011886032.

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 1020404124442 its reverse (2444214040201), we get a palindrome (3464618164643).

The spelling of 1020404124442 in words is "one trillion, twenty billion, four hundred four million, one hundred twenty-four thousand, four hundred forty-two".