136031120355233 has 4 divisors (see below), whose sum is σ = 136031565938820. Its totient is φ = 136030674771648.

The previous prime is 136031120355191. The next prime is 136031120355257. The reversal of 136031120355233 is 332553021130631.

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

It can be written as a sum of positive squares in 2 ways, for example, as 71376527062369 + 64654593292864 = 8448463^2 + 8040808^2 .

It is a cyclic number.

It is not a de Polignac number, because 136031120355233 - 2¹⁰ = 136031120354209 is a prime.

It is a super-2 number, since 2×136031120355233² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136031120355433) 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, 222333548 + ... + 222944541.

It is an arithmetic number, because the mean of its divisors is an integer number (34007891484705).

Almost surely, 2^{136031120355233} is an apocalyptic number.

It is an amenable number.

136031120355233 is a deficient number, since it is larger than the sum of its proper divisors (445583587).

136031120355233 is an equidigital number, since it uses as much as digits as its factorization.

136031120355233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445583586.

The product of its (nonzero) digits is 145800, while the sum is 38.

Adding to 136031120355233 its reverse (332553021130631), we get a palindrome (468584141485864).

The spelling of 136031120355233 in words is "one hundred thirty-six trillion, thirty-one billion, one hundred twenty million, three hundred fifty-five thousand, two hundred thirty-three".