13103343437 has 4 divisors (see below), whose sum is σ = 13105497276. Its totient is φ = 13101189600.

The previous prime is 13103343433. The next prime is 13103343439. The reversal of 13103343437 is 73434330131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73434330131 = 577 ⋅127269203.

It can be written as a sum of positive squares in 2 ways, for example, as 8932896196 + 4170447241 = 94514^2 + 64579^2 .

It is a cyclic number.

It is not a de Polignac number, because 13103343437 - 2² = 13103343433 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 (13103343433) 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, 1067768 + ... + 1079969.

It is an arithmetic number, because the mean of its divisors is an integer number (3276374319).

Almost surely, 2^13103343437 is an apocalyptic number.

It is an amenable number.

13103343437 is a deficient number, since it is larger than the sum of its proper divisors (2153839).

13103343437 is an equidigital number, since it uses as much as digits as its factorization.

13103343437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153838.

The product of its (nonzero) digits is 27216, while the sum is 32.

Adding to 13103343437 its reverse (73434330131), we get a palindrome (86537673568).

The spelling of 13103343437 in words is "thirteen billion, one hundred three million, three hundred forty-three thousand, four hundred thirty-seven".