21011300102030 has 64 divisors (see below), whose sum is σ = 43575214325760. Its totient is φ = 7145243207424.

The previous prime is 21011300102017. The next prime is 21011300102041. The reversal of 21011300102030 is 3020100311012.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 21011300101996 and 21011300102014.

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, 33192869 + ... + 33819951.

It is an arithmetic number, because the mean of its divisors is an integer number (680862723840).

Almost surely, 2^{21011300102030} is an apocalyptic number.

21011300102030 is an abundant number, since it is smaller than the sum of its proper divisors (22563914223730).

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

21011300102030 is a wasteful number, since it uses less digits than its factorization.

21011300102030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630993.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21011300102030 its reverse (3020100311012), we get a palindrome (24031400413042).

The spelling of 21011300102030 in words is "twenty-one trillion, eleven billion, three hundred million, one hundred two thousand, thirty".