21023302302030 has 32 divisors (see below), whose sum is σ = 57663914886144. Its totient is φ = 4805326240416.

The previous prime is 21023302302007. The next prime is 21023302302071. The reversal of 21023302302030 is 3020320332012.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 21023302301988 and 21023302302006.

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, 50055481462 + ... + 50055481881.

It is an arithmetic number, because the mean of its divisors is an integer number (1801997340192).

Almost surely, 2^{21023302302030} is an apocalyptic number.

21023302302030 is an abundant number, since it is smaller than the sum of its proper divisors (36640612584114).

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

21023302302030 is a wasteful number, since it uses less digits than its factorization.

21023302302030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100110963360.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 21023302302030 its reverse (3020320332012), we get a palindrome (24043622634042).

The spelling of 21023302302030 in words is "twenty-one trillion, twenty-three billion, three hundred two million, three hundred two thousand, thirty".