1113451310205 has 128 divisors (see below), whose sum is σ = 2149855948800. Its totient is φ = 543517869312.

The previous prime is 1113451310201. The next prime is 1113451310221. The reversal of 1113451310205 is 5020131543111.

1113451310205 is a `hidden beast` number, since 1 + 1 + 1 + 3 + 451 + 3 + 1 + 0 + 205 = 666.

It is not a de Polignac number, because 1113451310205 - 2² = 1113451310201 is a prime.

It is a super-2 number, since 2×1113451310205² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113451310201) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 122798082 + ... + 122807148.

It is an arithmetic number, because the mean of its divisors is an integer number (16795749600).

Almost surely, 2^{1113451310205} is an apocalyptic number.

1113451310205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1113451310205 is a deficient number, since it is larger than the sum of its proper divisors (1036404638595).

1113451310205 is a wasteful number, since it uses less digits than its factorization.

1113451310205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9680 (or 9674 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

Adding to 1113451310205 its reverse (5020131543111), we get a palindrome (6133582853316).

The spelling of 1113451310205 in words is "one trillion, one hundred thirteen billion, four hundred fifty-one million, three hundred ten thousand, two hundred five".