20345313003 has 8 divisors (see below), whose sum is σ = 27135958416. Its totient is φ = 13559104800.

The previous prime is 20345312963. The next prime is 20345313019. The reversal of 20345313003 is 30031354302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20345313003 - 2²⁰ = 20344264427 is a prime.

It is a super-3 number, since 3×20345313003³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (20345313073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1098588 + ... + 1116953.

It is an arithmetic number, because the mean of its divisors is an integer number (3391994802).

Almost surely, 2^20345313003 is an apocalyptic number.

20345313003 is a deficient number, since it is larger than the sum of its proper divisors (6790645413).

20345313003 is a wasteful number, since it uses less digits than its factorization.

20345313003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218605.

The product of its (nonzero) digits is 3240, while the sum is 24.

Adding to 20345313003 its reverse (30031354302), we get a palindrome (50376667305).

The spelling of 20345313003 in words is "twenty billion, three hundred forty-five million, three hundred thirteen thousand, three".