13012043205 has 32 divisors (see below), whose sum is σ = 24613920000. Its totient is φ = 5743245312.

The previous prime is 13012043203. The next prime is 13012043221. The reversal of 13012043205 is 50234021031.

It is not a de Polignac number, because 13012043205 - 2¹ = 13012043203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13012043203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2133580 + ... + 2139669.

It is an arithmetic number, because the mean of its divisors is an integer number (769185000).

Almost surely, 2^13012043205 is an apocalyptic number.

13012043205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13012043205 is a deficient number, since it is larger than the sum of its proper divisors (11601876795).

13012043205 is a wasteful number, since it uses less digits than its factorization.

13012043205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4273293.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 13012043205 its reverse (50234021031), we get a palindrome (63246064236).

The spelling of 13012043205 in words is "thirteen billion, twelve million, forty-three thousand, two hundred five".