113256511205 has 4 divisors (see below), whose sum is σ = 135907813452. Its totient is φ = 90605208960.

The previous prime is 113256511201. The next prime is 113256511211. The reversal of 113256511205 is 502115652311.

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 62000004004 + 51256507201 = 248998^2 + 226399^2 .

It is not a de Polignac number, because 113256511205 - 2² = 113256511201 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 (113256511201) 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, 11325651116 + ... + 11325651125.

It is an arithmetic number, because the mean of its divisors is an integer number (33976953363).

Almost surely, 2^113256511205 is an apocalyptic number.

It is an amenable number.

113256511205 is a deficient number, since it is larger than the sum of its proper divisors (22651302247).

113256511205 is an equidigital number, since it uses as much as digits as its factorization.

113256511205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22651302246.

The product of its (nonzero) digits is 9000, while the sum is 32.

The spelling of 113256511205 in words is "one hundred thirteen billion, two hundred fifty-six million, five hundred eleven thousand, two hundred five".