21030112302 has 16 divisors (see below), whose sum is σ = 42121814400. Its totient is φ = 6999772472.

The previous prime is 21030112277. The next prime is 21030112331. The reversal of 21030112302 is 20321103012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2561802 + ... + 2569997.

It is an arithmetic number, because the mean of its divisors is an integer number (2632613400).

Almost surely, 2^21030112302 is an apocalyptic number.

21030112302 is an abundant number, since it is smaller than the sum of its proper divisors (21091702098).

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

21030112302 is a wasteful number, since it uses less digits than its factorization.

21030112302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5132487.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21030112302 its reverse (20321103012), we get a palindrome (41351215314).

The spelling of 21030112302 in words is "twenty-one billion, thirty million, one hundred twelve thousand, three hundred two".