21113002331042 has 32 divisors (see below), whose sum is σ = 32055808561920. Its totient is φ = 10428494590080.

The previous prime is 21113002331011. The next prime is 21113002331107. The reversal of 21113002331042 is 24013320031112.

It is a junction number, because it is equal to n+sod(n) for n = 21113002330999 and 21113002331017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 613215884 + ... + 613250312.

It is an arithmetic number, because the mean of its divisors is an integer number (1001744017560).

Almost surely, 2^{21113002331042} is an apocalyptic number.

21113002331042 is a deficient number, since it is larger than the sum of its proper divisors (10942806230878).

21113002331042 is a wasteful number, since it uses less digits than its factorization.

21113002331042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45386.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 21113002331042 its reverse (24013320031112), we get a palindrome (45126322362154).

The spelling of 21113002331042 in words is "twenty-one trillion, one hundred thirteen billion, two million, three hundred thirty-one thousand, forty-two".