102001103101421 has 4 divisors (see below), whose sum is σ = 106435933671072. Its totient is φ = 97566272531772.

The previous prime is 102001103101369. The next prime is 102001103101459. The reversal of 102001103101421 is 124101301100201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102001103101421 - 2¹⁸ = 102001102839277 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102001103101421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102001123101421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2217415284791 + ... + 2217415284836.

It is an arithmetic number, because the mean of its divisors is an integer number (26608983417768).

Almost surely, 2^{102001103101421} is an apocalyptic number.

It is an amenable number.

102001103101421 is a deficient number, since it is larger than the sum of its proper divisors (4434830569651).

102001103101421 is an equidigital number, since it uses as much as digits as its factorization.

102001103101421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4434830569650.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 102001103101421 its reverse (124101301100201), we get a palindrome (226102404201622).

The spelling of 102001103101421 in words is "one hundred two trillion, one billion, one hundred three million, one hundred one thousand, four hundred twenty-one".