20137430267 has 2 divisors, whose sum is σ = 20137430268. Its totient is φ = 20137430266.

The previous prime is 20137430251. The next prime is 20137430329. The reversal of 20137430267 is 76203473102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20137430267 - 2⁴ = 20137430251 is a prime.

It is not a weakly prime, because it can be changed into another prime (20137430207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10068715133 + 10068715134.

It is an arithmetic number, because the mean of its divisors is an integer number (10068715134).

Almost surely, 2^20137430267 is an apocalyptic number.

20137430267 is a deficient number, since it is larger than the sum of its proper divisors (1).

20137430267 is an equidigital number, since it uses as much as digits as its factorization.

20137430267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 35.

The spelling of 20137430267 in words is "twenty billion, one hundred thirty-seven million, four hundred thirty thousand, two hundred sixty-seven".