21010103212301 has 8 divisors (see below), whose sum is σ = 25423990441920. Its totient is φ = 16949326961088.

The previous prime is 21010103212297. The next prime is 21010103212313. The reversal of 21010103212301 is 10321230101012.

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 21010103212301 - 2² = 21010103212297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 21010103212301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010103212361) 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, 88277744471 + ... + 88277744708.

It is an arithmetic number, because the mean of its divisors is an integer number (3177998805240).

Almost surely, 2^{21010103212301} is an apocalyptic number.

It is an amenable number.

21010103212301 is a deficient number, since it is larger than the sum of its proper divisors (4413887229619).

21010103212301 is a wasteful number, since it uses less digits than its factorization.

21010103212301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176555489203.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 21010103212301 its reverse (10321230101012), we get a palindrome (31331333313313).

The spelling of 21010103212301 in words is "twenty-one trillion, ten billion, one hundred three million, two hundred twelve thousand, three hundred one".