20137267137111 has 4 divisors (see below), whose sum is σ = 26849689516152. Its totient is φ = 13424844758072.

The previous prime is 20137267137107. The next prime is 20137267137151. The reversal of 20137267137111 is 11173176273102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20137267137111 - 2² = 20137267137107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20137267137151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3356211189516 + ... + 3356211189521.

It is an arithmetic number, because the mean of its divisors is an integer number (6712422379038).

Almost surely, 2^{20137267137111} is an apocalyptic number.

20137267137111 is a deficient number, since it is larger than the sum of its proper divisors (6712422379041).

20137267137111 is an equidigital number, since it uses as much as digits as its factorization.

20137267137111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6712422379040.

The product of its (nonzero) digits is 74088, while the sum is 42.

The spelling of 20137267137111 in words is "twenty trillion, one hundred thirty-seven billion, two hundred sixty-seven million, one hundred thirty-seven thousand, one hundred eleven".