13102129989 has 24 divisors (see below), whose sum is σ = 20561475480. Its totient is φ = 7991488512.

The previous prime is 13102129979. The next prime is 13102130011. The reversal of 13102129989 is 98992120131.

It can be written as a sum of positive squares in 4 ways, for example, as 28037025 + 13074092964 = 5295^2 + 114342^2 .

It is not a de Polignac number, because 13102129989 - 2⁴ = 13102129973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13102129919) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 482284 + ... + 508725.

It is an arithmetic number, because the mean of its divisors is an integer number (856728145).

Almost surely, 2^13102129989 is an apocalyptic number.

It is an amenable number.

13102129989 is a deficient number, since it is larger than the sum of its proper divisors (7459345491).

13102129989 is a wasteful number, since it uses less digits than its factorization.

13102129989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991141 (or 991138 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

It can be divided in two parts, 1310212 and 9989, that added together give a square (1320201 = 1149²).

The spelling of 13102129989 in words is "thirteen billion, one hundred two million, one hundred twenty-nine thousand, nine hundred eighty-nine".