103023121321 has 4 divisors (see below), whose sum is σ = 103067741700. Its totient is φ = 102978500944.

The previous prime is 103023121277. The next prime is 103023121351. The reversal of 103023121321 is 123121320301.

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 92742175296 + 10280946025 = 304536^2 + 101395^2 .

It is a cyclic number.

It is not a de Polignac number, because 103023121321 - 2⁷ = 103023121193 is a prime.

It is a super-2 number, since 2×103023121321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103023121351) 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, 22306726 + ... + 22311343.

It is an arithmetic number, because the mean of its divisors is an integer number (25766935425).

Almost surely, 2^103023121321 is an apocalyptic number.

It is an amenable number.

103023121321 is a deficient number, since it is larger than the sum of its proper divisors (44620379).

103023121321 is an equidigital number, since it uses as much as digits as its factorization.

103023121321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44620378.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 103023121321 its reverse (123121320301), we get a palindrome (226144441622).

The spelling of 103023121321 in words is "one hundred three billion, twenty-three million, one hundred twenty-one thousand, three hundred twenty-one".