136012311 has 32 divisors (see below), whose sum is σ = 207595520. Its totient is φ = 87962112.

The previous prime is 136012307. The next prime is 136012339. The reversal of 136012311 is 113210631.

It is not a de Polignac number, because 136012311 - 2² = 136012307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136012391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223770 + ... + 224376.

It is an arithmetic number, because the mean of its divisors is an integer number (6487360).

Almost surely, 2^136012311 is an apocalyptic number.

136012311 is a deficient number, since it is larger than the sum of its proper divisors (71583209).

136012311 is a wasteful number, since it uses less digits than its factorization.

136012311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852 (or 846 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 136012311 is about 11662.4316075165. The cubic root of 136012311 is about 514.2718348437.

Adding to 136012311 its reverse (113210631), we get a palindrome (249222942).

The spelling of 136012311 in words is "one hundred thirty-six million, twelve thousand, three hundred eleven".