13126170020 has 24 divisors (see below), whose sum is σ = 27766166904. Its totient is φ = 5212142336.

The previous prime is 13126170017. The next prime is 13126170023. The reversal of 13126170020 is 2007162131.

It is an interprime number because it is at equal distance from previous prime (13126170017) and next prime (13126170023).

It can be written as a sum of positive squares in 4 ways, for example, as 4661065984 + 8465104036 = 68272^2 + 92006^2 .

It is not an unprimeable number, because it can be changed into a prime (13126170023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2392547 + ... + 2398026.

It is an arithmetic number, because the mean of its divisors is an integer number (1156923621).

Almost surely, 2^13126170020 is an apocalyptic number.

13126170020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13126170020 is an abundant number, since it is smaller than the sum of its proper divisors (14639996884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13126170020 is a wasteful number, since it uses less digits than its factorization.

13126170020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4790719 (or 4790717 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The spelling of 13126170020 in words is "thirteen billion, one hundred twenty-six million, one hundred seventy thousand, twenty".