21031002010302 has 32 divisors (see below), whose sum is σ = 42437968146432. Its totient is φ = 6947789897664.

The previous prime is 21031002010267. The next prime is 21031002010307. The reversal of 21031002010302 is 20301020013012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21031002010307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13850583 + ... + 15293810.

It is an arithmetic number, because the mean of its divisors is an integer number (1326186504576).

Almost surely, 2^{21031002010302} is an apocalyptic number.

21031002010302 is an abundant number, since it is smaller than the sum of its proper divisors (21406966136130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21031002010302 is a wasteful number, since it uses less digits than its factorization.

21031002010302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29145472.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21031002010302 its reverse (20301020013012), we get a palindrome (41332022023314).

The spelling of 21031002010302 in words is "twenty-one trillion, thirty-one billion, two million, ten thousand, three hundred two".