103124421121 has 4 divisors (see below), whose sum is σ = 103160825092. Its totient is φ = 103088017152.

The previous prime is 103124421077. The next prime is 103124421131. The reversal of 103124421121 is 121124421301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42667446721 + 60456974400 = 206561^2 + 245880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103124421121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103124421092 and 103124421101.

It is not an unprimeable number, because it can be changed into a prime (103124421131) 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, 18197736 + ... + 18203401.

It is an arithmetic number, because the mean of its divisors is an integer number (25790206273).

Almost surely, 2^103124421121 is an apocalyptic number.

It is an amenable number.

103124421121 is a deficient number, since it is larger than the sum of its proper divisors (36403971).

103124421121 is an equidigital number, since it uses as much as digits as its factorization.

103124421121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36403970.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 103124421121 its reverse (121124421301), we get a palindrome (224248842422).

The spelling of 103124421121 in words is "one hundred three billion, one hundred twenty-four million, four hundred twenty-one thousand, one hundred twenty-one".