1205451130133 has 6 divisors (see below), whose sum is σ = 1226228803254. Its totient is φ = 1185019751624.

The previous prime is 1205451130129. The next prime is 1205451130139. The reversal of 1205451130133 is 3310311545021.

It can be written as a sum of positive squares in only one way, i.e., 727143336529 + 478307793604 = 852727^2 + 691598^2 .

It is not a de Polignac number, because 1205451130133 - 2² = 1205451130129 is a prime.

It is a super-2 number, since 2×1205451130133² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1205451130096 and 1205451130105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205451130139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 173143766 + ... + 173150727.

It is an arithmetic number, because the mean of its divisors is an integer number (204371467209).

Almost surely, 2^{1205451130133} is an apocalyptic number.

It is an amenable number.

1205451130133 is a deficient number, since it is larger than the sum of its proper divisors (20777673121).

1205451130133 is an frugal number, since it uses more digits than its factorization.

1205451130133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346294611 (or 346294552 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

Adding to 1205451130133 its reverse (3310311545021), we get a palindrome (4515762675154).

The spelling of 1205451130133 in words is "one trillion, two hundred five billion, four hundred fifty-one million, one hundred thirty thousand, one hundred thirty-three".