21030112301 has 18 divisors (see below), whose sum is σ = 23398529070. Its totient is φ = 18887194480.

The previous prime is 21030112277. The next prime is 21030112331. The reversal of 21030112301 is 10321103012.

It can be written as a sum of positive squares in only one way, i.e., 13024515625 + 8005596676 = 114125^2 + 89474^2 .

It is not a de Polignac number, because 21030112301 - 2⁶ = 21030112237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21030112331) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 820955 + ... + 846183.

Almost surely, 2^21030112301 is an apocalyptic number.

It is an amenable number.

21030112301 is a deficient number, since it is larger than the sum of its proper divisors (2368416769).

21030112301 is an equidigital number, since it uses as much as digits as its factorization.

21030112301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25417 (or 25323 counting only the distinct ones).

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

Adding to 21030112301 its reverse (10321103012), we get a palindrome (31351215313).

It can be divided in two parts, 21030 and 112301, that added together give a palindrome (133331).

The spelling of 21030112301 in words is "twenty-one billion, thirty million, one hundred twelve thousand, three hundred one".