11506133413 has 8 divisors (see below), whose sum is σ = 11726672760. Its totient is φ = 11287684800.

The previous prime is 11506133393. The next prime is 11506133437. The reversal of 11506133413 is 31433160511.

It can be written as a sum of positive squares in 4 ways, for example, as 7544312164 + 3961821249 = 86858^2 + 62943^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11506133413 - 2⁹ = 11506132901 is a prime.

It is a super-2 number, since 2×11506133413² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11506130413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511570 + ... + 533587.

It is an arithmetic number, because the mean of its divisors is an integer number (1465834095).

Almost surely, 2^11506133413 is an apocalyptic number.

It is an amenable number.

11506133413 is a deficient number, since it is larger than the sum of its proper divisors (220539347).

11506133413 is a wasteful number, since it uses less digits than its factorization.

11506133413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045367.

The product of its (nonzero) digits is 3240, while the sum is 28.

Adding to 11506133413 its reverse (31433160511), we get a palindrome (42939293924).

The spelling of 11506133413 in words is "eleven billion, five hundred six million, one hundred thirty-three thousand, four hundred thirteen".