11413113121 has 8 divisors (see below), whose sum is σ = 11768561280. Its totient is φ = 11062854192.

The previous prime is 11413113119. The next prime is 11413113139. The reversal of 11413113121 is 12131131411.

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 11413113121 - 2¹ = 11413113119 is a prime.

It is a super-2 number, since 2×11413113121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11413113161) 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, 1292841 + ... + 1301638.

It is an arithmetic number, because the mean of its divisors is an integer number (1471070160).

Almost surely, 2^11413113121 is an apocalyptic number.

It is an amenable number.

11413113121 is a deficient number, since it is larger than the sum of its proper divisors (355448159).

11413113121 is an equidigital number, since it uses as much as digits as its factorization.

11413113121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2594615.

The product of its digits is 72, while the sum is 19.

Adding to 11413113121 its reverse (12131131411), we get a palindrome (23544244532).

The spelling of 11413113121 in words is "eleven billion, four hundred thirteen million, one hundred thirteen thousand, one hundred twenty-one".