104111203312421 has 4 divisors (see below), whose sum is σ = 104114526713472. Its totient is φ = 104107879911372.

The previous prime is 104111203312409. The next prime is 104111203312427. The reversal of 104111203312421 is 124213302111401.

It is a happy number.

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 104111203312421 - 2¹⁸ = 104111203050277 is a prime.

It is a super-2 number, since 2×104111203312421² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104111203312427) 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, 1661653535 + ... + 1661716188.

It is an arithmetic number, because the mean of its divisors is an integer number (26028631678368).

Almost surely, 2^{104111203312421} is an apocalyptic number.

It is an amenable number.

104111203312421 is a deficient number, since it is larger than the sum of its proper divisors (3323401051).

104111203312421 is an equidigital number, since it uses as much as digits as its factorization.

104111203312421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3323401050.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 104111203312421 its reverse (124213302111401), we get a palindrome (228324505423822).

The spelling of 104111203312421 in words is "one hundred four trillion, one hundred eleven billion, two hundred three million, three hundred twelve thousand, four hundred twenty-one".