102003112031321 has 4 divisors (see below), whose sum is σ = 102246556213200. Its totient is φ = 101759667849444.

The previous prime is 102003112031299. The next prime is 102003112031323. The reversal of 102003112031321 is 123130211300201.

It is a happy number.

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 102003112031321 - 2¹⁸ = 102003111769177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102003112031293 and 102003112031302.

It is not an unprimeable number, because it can be changed into a prime (102003112031323) 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, 121722090311 + ... + 121722091148.

It is an arithmetic number, because the mean of its divisors is an integer number (25561639053300).

Almost surely, 2^{102003112031321} is an apocalyptic number.

It is an amenable number.

102003112031321 is a deficient number, since it is larger than the sum of its proper divisors (243444181879).

102003112031321 is an equidigital number, since it uses as much as digits as its factorization.

102003112031321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243444181878.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 102003112031321 its reverse (123130211300201), we get a palindrome (225133323331522).

The spelling of 102003112031321 in words is "one hundred two trillion, three billion, one hundred twelve million, thirty-one thousand, three hundred twenty-one".