20130202231013 has 4 divisors (see below), whose sum is σ = 23005945406880. Its totient is φ = 17254459055148.

The previous prime is 20130202230991. The next prime is 20130202231037. The reversal of 20130202231013 is 31013220203102.

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 not a de Polignac number, because 20130202231013 - 2⁸ = 20130202230757 is a prime.

It is a super-2 number, since 2×20130202231013² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130202239013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1437871587923 + ... + 1437871587936.

It is an arithmetic number, because the mean of its divisors is an integer number (5751486351720).

Almost surely, 2^{20130202231013} is an apocalyptic number.

It is an amenable number.

20130202231013 is a deficient number, since it is larger than the sum of its proper divisors (2875743175867).

20130202231013 is an equidigital number, since it uses as much as digits as its factorization.

20130202231013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2875743175866.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20130202231013 its reverse (31013220203102), we get a palindrome (51143422434115).

The spelling of 20130202231013 in words is "twenty trillion, one hundred thirty billion, two hundred two million, two hundred thirty-one thousand, thirteen".