1001102644042 has 32 divisors (see below), whose sum is σ = 1605891662352. Its totient is φ = 466404040704.

The previous prime is 1001102643973. The next prime is 1001102644057. The reversal of 1001102644042 is 2404462011001.

It can be written as a sum of positive squares in 8 ways, for example, as 553299433281 + 447803210761 = 743841^2 + 669181^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1001102643998 and 1001102644016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3220878 + ... + 3517990.

Almost surely, 2^{1001102644042} is an apocalyptic number.

1001102644042 is a deficient number, since it is larger than the sum of its proper divisors (604789018310).

1001102644042 is a wasteful number, since it uses less digits than its factorization.

1001102644042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298122.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 1001102644042 its reverse (2404462011001), we get a palindrome (3405564655043).

The spelling of 1001102644042 in words is "one trillion, one billion, one hundred two million, six hundred forty-four thousand, forty-two".