103113402123421 has 4 divisors (see below), whose sum is σ = 103318398947232. Its totient is φ = 102908405299612.

The previous prime is 103113402123377. The next prime is 103113402123463. The reversal of 103113402123421 is 124321204311301.

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 103113402123421 - 2³¹ = 103111254639773 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 103113402123421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103113402123521) 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, 102498411151 + ... + 102498412156.

It is an arithmetic number, because the mean of its divisors is an integer number (25829599736808).

Almost surely, 2^{103113402123421} is an apocalyptic number.

It is an amenable number.

103113402123421 is a deficient number, since it is larger than the sum of its proper divisors (204996823811).

103113402123421 is an equidigital number, since it uses as much as digits as its factorization.

103113402123421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204996823810.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 103113402123421 its reverse (124321204311301), we get a palindrome (227434606434722).

The spelling of 103113402123421 in words is "one hundred three trillion, one hundred thirteen billion, four hundred two million, one hundred twenty-three thousand, four hundred twenty-one".