21312201030113 has 16 divisors (see below), whose sum is σ = 25377962064000. Its totient is φ = 17510793777792.

The previous prime is 21312201030097. The next prime is 21312201030151. The reversal of 21312201030113 is 31103010221312.

It is a happy number.

It is not a de Polignac number, because 21312201030113 - 2⁴ = 21312201030097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21312251030113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377620028 + ... + 377676461.

It is an arithmetic number, because the mean of its divisors is an integer number (1586122629000).

Almost surely, 2^{21312201030113} is an apocalyptic number.

It is an amenable number.

21312201030113 is a deficient number, since it is larger than the sum of its proper divisors (4065761033887).

21312201030113 is a wasteful number, since it uses less digits than its factorization.

21312201030113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755296664.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 21312201030113 its reverse (31103010221312), we get a palindrome (52415211251425).

The spelling of 21312201030113 in words is "twenty-one trillion, three hundred twelve billion, two hundred one million, thirty thousand, one hundred thirteen".