13012314531 has 4 divisors (see below), whose sum is σ = 17349752712. Its totient is φ = 8674876352.

The previous prime is 13012314527. The next prime is 13012314533. The reversal of 13012314531 is 13541321031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13012314531 - 2² = 13012314527 is a prime.

It is a super-2 number, since 2×13012314531² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13012314533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2168719086 + ... + 2168719091.

It is an arithmetic number, because the mean of its divisors is an integer number (4337438178).

Almost surely, 2^13012314531 is an apocalyptic number.

13012314531 is a deficient number, since it is larger than the sum of its proper divisors (4337438181).

13012314531 is an equidigital number, since it uses as much as digits as its factorization.

13012314531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4337438180.

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 13012314531 its reverse (13541321031), we get a palindrome (26553635562).

The spelling of 13012314531 in words is "thirteen billion, twelve million, three hundred fourteen thousand, five hundred thirty-one".