13315441531 has 8 divisors (see below), whose sum is σ = 15218349824. Its totient is φ = 11412708840.

The previous prime is 13315441523. The next prime is 13315441577. The reversal of 13315441531 is 13514451331.

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 13315441531 - 2³ = 13315441523 is a prime.

It is a super-2 number, since 2×13315441531² (a number of 21 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 = 13315441493 and 13315441502.

It is not an unprimeable number, because it can be changed into a prime (13315441631) 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, 248026 + ... + 296896.

It is an arithmetic number, because the mean of its divisors is an integer number (1902293728).

Almost surely, 2^13315441531 is an apocalyptic number.

13315441531 is a deficient number, since it is larger than the sum of its proper divisors (1902908293).

13315441531 is an equidigital number, since it uses as much as digits as its factorization.

13315441531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87801.

The product of its digits is 10800, while the sum is 31.

Adding to 13315441531 its reverse (13514451331), we get a palindrome (26829892862).

The spelling of 13315441531 in words is "thirteen billion, three hundred fifteen million, four hundred forty-one thousand, five hundred thirty-one".