20130202232311 has 2 divisors, whose sum is σ = 20130202232312. Its totient is φ = 20130202232310.

The previous prime is 20130202232297. The next prime is 20130202232317. The reversal of 20130202232311 is 11323220203102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20130202232311 is a prime.

It is a super-2 number, since 2×20130202232311² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20130202232317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065101116155 + 10065101116156.

It is an arithmetic number, because the mean of its divisors is an integer number (10065101116156).

Almost surely, 2^{20130202232311} is an apocalyptic number.

20130202232311 is a deficient number, since it is larger than the sum of its proper divisors (1).

20130202232311 is an equidigital number, since it uses as much as digits as its factorization.

20130202232311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20130202232311 its reverse (11323220203102), we get a palindrome (31453422435413).

The spelling of 20130202232311 in words is "twenty trillion, one hundred thirty billion, two hundred two million, two hundred thirty-two thousand, three hundred eleven".