103131320333 has 4 divisors (see below), whose sum is σ = 103132099968. Its totient is φ = 103130540700.

The previous prime is 103131320311. The next prime is 103131320339. The reversal of 103131320333 is 333023131301.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 333023131301 = 7 ⋅47574733043.

It is a cyclic number.

It is not a de Polignac number, because 103131320333 - 2¹⁴ = 103131303949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 103131320299 and 103131320308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103131320339) 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, 136541 + ... + 474242.

It is an arithmetic number, because the mean of its divisors is an integer number (25783024992).

Almost surely, 2^103131320333 is an apocalyptic number.

It is an amenable number.

103131320333 is a deficient number, since it is larger than the sum of its proper divisors (779635).

103131320333 is an equidigital number, since it uses as much as digits as its factorization.

103131320333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779634.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 103131320333 its reverse (333023131301), we get a palindrome (436154451634).

The spelling of 103131320333 in words is "one hundred three billion, one hundred thirty-one million, three hundred twenty thousand, three hundred thirty-three".