21103024212030 has 64 divisors (see below), whose sum is σ = 52416629591040. Its totient is φ = 5431046027904.

The previous prime is 21103024212029. The next prime is 21103024212031. The reversal of 21103024212030 is 3021242030112.

It is an interprime number because it is at equal distance from previous prime (21103024212029) and next prime (21103024212031).

It is a junction number, because it is equal to n+sod(n) for n = 21103024211988 and 21103024212006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21103024212031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3313404 + ... + 7292783.

It is an arithmetic number, because the mean of its divisors is an integer number (819009837360).

Almost surely, 2^{21103024212030} is an apocalyptic number.

21103024212030 is an abundant number, since it is smaller than the sum of its proper divisors (31313605379010).

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

21103024212030 is a wasteful number, since it uses less digits than its factorization.

21103024212030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10608513.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21103024212030 its reverse (3021242030112), we get a palindrome (24124266242142).

The spelling of 21103024212030 in words is "twenty-one trillion, one hundred three billion, twenty-four million, two hundred twelve thousand, thirty".