20130132029977 has 2 divisors, whose sum is σ = 20130132029978. Its totient is φ = 20130132029976.

The previous prime is 20130132029963. The next prime is 20130132030013. The reversal of 20130132029977 is 77992023103102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15692246286336 + 4437885743641 = 3961344^2 + 2106629^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20130132029977 is a prime.

It is not a weakly prime, because it can be changed into another prime (20130132099977) 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 as a sum of consecutive naturals, namely, 10065066014988 + 10065066014989.

It is an arithmetic number, because the mean of its divisors is an integer number (10065066014989).

Almost surely, 2^{20130132029977} is an apocalyptic number.

It is an amenable number.

20130132029977 is a deficient number, since it is larger than the sum of its proper divisors (1).

20130132029977 is an equidigital number, since it uses as much as digits as its factorization.

20130132029977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 285768, while the sum is 46.

The spelling of 20130132029977 in words is "twenty trillion, one hundred thirty billion, one hundred thirty-two million, twenty-nine thousand, nine hundred seventy-seven".