21020323003310 has 32 divisors (see below), whose sum is σ = 40062722847840. Its totient is φ = 7913442465792.

The previous prime is 21020323003297. The next prime is 21020323003397. The reversal of 21020323003310 is 1330032302012.

It is a super-2 number, since 2×21020323003310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15175157 + ... + 16502303.

It is an arithmetic number, because the mean of its divisors is an integer number (1251960088995).

Almost surely, 2^{21020323003310} is an apocalyptic number.

21020323003310 is a deficient number, since it is larger than the sum of its proper divisors (19042399844530).

21020323003310 is a wasteful number, since it uses less digits than its factorization.

21020323003310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420340.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21020323003310 its reverse (1330032302012), we get a palindrome (22350355305322).

The spelling of 21020323003310 in words is "twenty-one trillion, twenty billion, three hundred twenty-three million, three thousand, three hundred ten".