13031212123 has 2 divisors, whose sum is σ = 13031212124. Its totient is φ = 13031212122.

The previous prime is 13031212087. The next prime is 13031212127. The reversal of 13031212123 is 32121213031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13031212123 - 2¹⁷ = 13031081051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13031212123.

It is not a weakly prime, because it can be changed into another prime (13031212127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6515606061 + 6515606062.

It is an arithmetic number, because the mean of its divisors is an integer number (6515606062).

Almost surely, 2^13031212123 is an apocalyptic number.

13031212123 is a deficient number, since it is larger than the sum of its proper divisors (1).

13031212123 is an equidigital number, since it uses as much as digits as its factorization.

13031212123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13031212123 its reverse (32121213031), we get a palindrome (45152425154).

The spelling of 13031212123 in words is "thirteen billion, thirty-one million, two hundred twelve thousand, one hundred twenty-three".