21232101212113 has 8 divisors (see below), whose sum is σ = 23164985937600. Its totient is φ = 19299665437680.

The previous prime is 21232101212099. The next prime is 21232101212117. The reversal of 21232101212113 is 31121210123212.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 21232101212113 - 2²⁵ = 21232067657681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21232101212117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112138870 + ... + 112328047.

It is an arithmetic number, because the mean of its divisors is an integer number (2895623242200).

Almost surely, 2^{21232101212113} is an apocalyptic number.

It is an amenable number.

21232101212113 is a deficient number, since it is larger than the sum of its proper divisors (1932884725487).

21232101212113 is a wasteful number, since it uses less digits than its factorization.

21232101212113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224475527.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 21232101212113 its reverse (31121210123212), we get a palindrome (52353311335325).

The spelling of 21232101212113 in words is "twenty-one trillion, two hundred thirty-two billion, one hundred one million, two hundred twelve thousand, one hundred thirteen".