103031311111321 has 4 divisors (see below), whose sum is σ = 103034100980944. Its totient is φ = 103028521241700.

The previous prime is 103031311111283. The next prime is 103031311111343. The reversal of 103031311111321 is 123111113130301.

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 103031311111321 - 2⁹ = 103031311110809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103031311111292 and 103031311111301.

It is not an unprimeable number, because it can be changed into a prime (103031311111361) 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, 1394879415 + ... + 1394953276.

It is an arithmetic number, because the mean of its divisors is an integer number (25758525245236).

Almost surely, 2^{103031311111321} is an apocalyptic number.

It is an amenable number.

103031311111321 is a deficient number, since it is larger than the sum of its proper divisors (2789869623).

103031311111321 is an equidigital number, since it uses as much as digits as its factorization.

103031311111321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789869622.

The product of its (nonzero) digits is 162, while the sum is 22.

Adding to 103031311111321 its reverse (123111113130301), we get a palindrome (226142424241622).

The spelling of 103031311111321 in words is "one hundred three trillion, thirty-one billion, three hundred eleven million, one hundred eleven thousand, three hundred twenty-one".