21242312112030 has 32 divisors (see below), whose sum is σ = 52066262882304. Its totient is φ = 5544092806176.

The previous prime is 21242312112013. The next prime is 21242312112199. The reversal of 21242312112030 is 3021121324212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7532733382 + ... + 7532736201.

It is an arithmetic number, because the mean of its divisors is an integer number (1627070715072).

Almost surely, 2^{21242312112030} is an apocalyptic number.

21242312112030 is an abundant number, since it is smaller than the sum of its proper divisors (30823950770274).

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

21242312112030 is a wasteful number, since it uses less digits than its factorization.

21242312112030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15065469640.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 21242312112030 its reverse (3021121324212), we get a palindrome (24263433436242).

The spelling of 21242312112030 in words is "twenty-one trillion, two hundred forty-two billion, three hundred twelve million, one hundred twelve thousand, thirty".