103121232113 has 4 divisors (see below), whose sum is σ = 107604763968. Its totient is φ = 98637700260.

The previous prime is 103121232103. The next prime is 103121232163. The reversal of 103121232113 is 311232121301.

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 103121232113 - 2¹² = 103121228017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103121232103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2241765893 + ... + 2241765938.

It is an arithmetic number, because the mean of its divisors is an integer number (26901190992).

Almost surely, 2^103121232113 is an apocalyptic number.

It is an amenable number.

103121232113 is a deficient number, since it is larger than the sum of its proper divisors (4483531855).

103121232113 is an equidigital number, since it uses as much as digits as its factorization.

103121232113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4483531854.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 103121232113 its reverse (311232121301), we get a palindrome (414353353414).

The spelling of 103121232113 in words is "one hundred three billion, one hundred twenty-one million, two hundred thirty-two thousand, one hundred thirteen".