13125031213 has 16 divisors (see below), whose sum is σ = 15693152256. Its totient is φ = 10732748400.

The previous prime is 13125031189. The next prime is 13125031217. The reversal of 13125031213 is 31213052131.

It is a cyclic number.

It is not a de Polignac number, because 13125031213 - 2⁵ = 13125031181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13125031217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44763 + ... + 168088.

It is an arithmetic number, because the mean of its divisors is an integer number (980822016).

Almost surely, 2^13125031213 is an apocalyptic number.

It is an amenable number.

13125031213 is a deficient number, since it is larger than the sum of its proper divisors (2568121043).

13125031213 is a wasteful number, since it uses less digits than its factorization.

13125031213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213264.

The product of its (nonzero) digits is 540, while the sum is 22.

Adding to 13125031213 its reverse (31213052131), we get a palindrome (44338083344).

The spelling of 13125031213 in words is "thirteen billion, one hundred twenty-five million, thirty-one thousand, two hundred thirteen".