103031021302321 has 24 divisors (see below), whose sum is σ = 123110181524736. Its totient is φ = 85923580841280.

The previous prime is 103031021302303. The next prime is 103031021302337. The reversal of 103031021302321 is 123203120130301.

It is not a de Polignac number, because 103031021302321 - 2⁹ = 103031021301809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103031021302292 and 103031021302301.

It is not an unprimeable number, because it can be changed into a prime (103031021302381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69132901 + ... + 70607506.

It is an arithmetic number, because the mean of its divisors is an integer number (5129590896864).

Almost surely, 2^{103031021302321} is an apocalyptic number.

It is an amenable number.

103031021302321 is a deficient number, since it is larger than the sum of its proper divisors (20079160222415).

103031021302321 is a wasteful number, since it uses less digits than its factorization.

103031021302321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139740829 (or 139740822 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 103031021302321 its reverse (123203120130301), we get a palindrome (226234141432622).

The spelling of 103031021302321 in words is "one hundred three trillion, thirty-one billion, twenty-one million, three hundred two thousand, three hundred twenty-one".