11518031029 has 8 divisors (see below), whose sum is σ = 12211601688. Its totient is φ = 10826242560.

The previous prime is 11518031017. The next prime is 11518031071. The reversal of 11518031029 is 92013081511.

It can be written as a sum of positive squares in 4 ways, for example, as 239166225 + 11278864804 = 15465^2 + 106202^2 .

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 11518031029 - 2²³ = 11509642421 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 (11518031009) 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, 432222 + ... + 458095.

It is an arithmetic number, because the mean of its divisors is an integer number (1526450211).

Almost surely, 2^11518031029 is an apocalyptic number.

It is an amenable number.

11518031029 is a deficient number, since it is larger than the sum of its proper divisors (693570659).

11518031029 is an equidigital number, since it uses as much as digits as its factorization.

11518031029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891095.

The product of its (nonzero) digits is 2160, while the sum is 31.

The spelling of 11518031029 in words is "eleven billion, five hundred eighteen million, thirty-one thousand, twenty-nine".