136213273231 has 24 divisors (see below), whose sum is σ = 159143680800. Its totient is φ = 116245850112.

The previous prime is 136213273171. The next prime is 136213273277. The reversal of 136213273231 is 132372312631.

It is not a de Polignac number, because 136213273231 - 2¹³ = 136213265039 is a prime.

It is a super-2 number, since 2×136213273231² (a number of 23 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 (136213273291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10708131 + ... + 10720843.

It is an arithmetic number, because the mean of its divisors is an integer number (6630986700).

Almost surely, 2^136213273231 is an apocalyptic number.

136213273231 is a deficient number, since it is larger than the sum of its proper divisors (22930407569).

136213273231 is a wasteful number, since it uses less digits than its factorization.

136213273231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13663 (or 13656 counting only the distinct ones).

The product of its digits is 27216, while the sum is 34.

Adding to 136213273231 its reverse (132372312631), we get a palindrome (268585585862).

The spelling of 136213273231 in words is "one hundred thirty-six billion, two hundred thirteen million, two hundred seventy-three thousand, two hundred thirty-one".