13103400434 has 4 divisors (see below), whose sum is σ = 19655100654. Its totient is φ = 6551700216.

The previous prime is 13103400433. The next prime is 13103400439. The reversal of 13103400434 is 43400430131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43400430131 = 2957 ⋅14677183.

It can be written as a sum of positive squares in only one way, i.e., 12275975209 + 827425225 = 110797^2 + 28765^2 .

It is not an unprimeable number, because it can be changed into a prime (13103400433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3275850107 + ... + 3275850110.

Almost surely, 2^13103400434 is an apocalyptic number.

13103400434 is a deficient number, since it is larger than the sum of its proper divisors (6551700220).

13103400434 is an equidigital number, since it uses as much as digits as its factorization.

13103400434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6551700219.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 13103400434 its reverse (43400430131), we get a palindrome (56503830565).

The spelling of 13103400434 in words is "thirteen billion, one hundred three million, four hundred thousand, four hundred thirty-four".