21131112210302 has 8 divisors (see below), whose sum is σ = 33561178216416. Its totient is φ = 9944052804832.

The previous prime is 21131112210277. The next prime is 21131112210343. The reversal of 21131112210302 is 20301221113112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310751650118 + ... + 310751650185.

It is an arithmetic number, because the mean of its divisors is an integer number (4195147277052).

Almost surely, 2^{21131112210302} is an apocalyptic number.

21131112210302 is a deficient number, since it is larger than the sum of its proper divisors (12430066006114).

21131112210302 is a wasteful number, since it uses less digits than its factorization.

21131112210302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621503300322.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 21131112210302 its reverse (20301221113112), we get a palindrome (41432333323414).

The spelling of 21131112210302 in words is "twenty-one trillion, one hundred thirty-one billion, one hundred twelve million, two hundred ten thousand, three hundred two".