138683570522111 has 4 divisors (see below), whose sum is σ = 138690543420000. Its totient is φ = 138676597624224.

The previous prime is 138683570521967. The next prime is 138683570522153. The reversal of 138683570522111 is 111225075386831.

It is a happy number.

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 138683570522111 - 2³⁰ = 138682496780287 is a prime.

It is a super-2 number, since 2×138683570522111² (a number of 29 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 (138683570522611) 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, 3486419111 + ... + 3486458888.

It is an arithmetic number, because the mean of its divisors is an integer number (34672635855000).

Almost surely, 2^{138683570522111} is an apocalyptic number.

138683570522111 is a deficient number, since it is larger than the sum of its proper divisors (6972897889).

138683570522111 is an equidigital number, since it uses as much as digits as its factorization.

138683570522111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6972897888.

The product of its (nonzero) digits is 2419200, while the sum is 53.

The spelling of 138683570522111 in words is "one hundred thirty-eight trillion, six hundred eighty-three billion, five hundred seventy million, five hundred twenty-two thousand, one hundred eleven".