102003121313 has 4 divisors (see below), whose sum is σ = 102033205248. Its totient is φ = 101973037380.

The previous prime is 102003121309. The next prime is 102003121331. The reversal of 102003121313 is 313121300201.

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 102003121313 - 2² = 102003121309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102003121291 and 102003121300.

It is not an unprimeable number, because it can be changed into a prime (102003121513) 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, 15036881 + ... + 15043662.

It is an arithmetic number, because the mean of its divisors is an integer number (25508301312).

Almost surely, 2^102003121313 is an apocalyptic number.

It is an amenable number.

102003121313 is a deficient number, since it is larger than the sum of its proper divisors (30083935).

102003121313 is an equidigital number, since it uses as much as digits as its factorization.

102003121313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30083934.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 102003121313 its reverse (313121300201), we get a palindrome (415124421514).

The spelling of 102003121313 in words is "one hundred two billion, three million, one hundred twenty-one thousand, three hundred thirteen".