21303032013030 has 64 divisors (see below), whose sum is σ = 51608597356800. Its totient is φ = 5627353253760.

The previous prime is 21303032012987. The next prime is 21303032013073. The reversal of 21303032013030 is 3031023030312.

It is an interprime number because it is at equal distance from previous prime (21303032012987) and next prime (21303032013073).

It is a junction number, because it is equal to n+sod(n) for n = 21303032012988 and 21303032013006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13024065 + ... + 14568195.

It is an arithmetic number, because the mean of its divisors is an integer number (806384333700).

Almost surely, 2^{21303032013030} is an apocalyptic number.

21303032013030 is an abundant number, since it is smaller than the sum of its proper divisors (30305565343770).

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

21303032013030 is a wasteful number, since it uses less digits than its factorization.

21303032013030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548469.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 21303032013030 its reverse (3031023030312), we get a palindrome (24334055043342).

The spelling of 21303032013030 in words is "twenty-one trillion, three hundred three billion, thirty-two million, thirteen thousand, thirty".