13103121529 has 4 divisors (see below), whose sum is σ = 13114853284. Its totient is φ = 13091389776.

The previous prime is 13103121481. The next prime is 13103121547. The reversal of 13103121529 is 92512130131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 676000000 + 12427121529 = 26000^2 + 111477^2 .

It is a cyclic number.

It is not a de Polignac number, because 13103121529 - 2¹³ = 13103113337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13103121497 and 13103121506.

It is not an unprimeable number, because it can be changed into a prime (13103121929) 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, 5864202 + ... + 5866435.

It is an arithmetic number, because the mean of its divisors is an integer number (3278713321).

Almost surely, 2^13103121529 is an apocalyptic number.

It is an amenable number.

13103121529 is a deficient number, since it is larger than the sum of its proper divisors (11731755).

13103121529 is a wasteful number, since it uses less digits than its factorization.

13103121529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11731754.

The product of its (nonzero) digits is 1620, while the sum is 28.

The spelling of 13103121529 in words is "thirteen billion, one hundred three million, one hundred twenty-one thousand, five hundred twenty-nine".