136431356111 has 2 divisors, whose sum is σ = 136431356112. Its totient is φ = 136431356110.

The previous prime is 136431356107. The next prime is 136431356161. The reversal of 136431356111 is 111653134631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136431356111 - 2² = 136431356107 is a prime.

It is a super-2 number, since 2×136431356111² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136431356161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68215678055 + 68215678056.

It is an arithmetic number, because the mean of its divisors is an integer number (68215678056).

Almost surely, 2^136431356111 is an apocalyptic number.

136431356111 is a deficient number, since it is larger than the sum of its proper divisors (1).

136431356111 is an equidigital number, since it uses as much as digits as its factorization.

136431356111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 35.

The spelling of 136431356111 in words is "one hundred thirty-six billion, four hundred thirty-one million, three hundred fifty-six thousand, one hundred eleven".