13212011123 has 2 divisors, whose sum is σ = 13212011124. Its totient is φ = 13212011122.

The previous prime is 13212011063. The next prime is 13212011147. The reversal of 13212011123 is 32111021231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13212011123 - 2²⁰ = 13210962547 is a prime.

It is a super-2 number, since 2×13212011123² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13212011173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6606005561 + 6606005562.

It is an arithmetic number, because the mean of its divisors is an integer number (6606005562).

Almost surely, 2^13212011123 is an apocalyptic number.

13212011123 is a deficient number, since it is larger than the sum of its proper divisors (1).

13212011123 is an equidigital number, since it uses as much as digits as its factorization.

13212011123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 13212011123 its reverse (32111021231), we get a palindrome (45323032354).

The spelling of 13212011123 in words is "thirteen billion, two hundred twelve million, eleven thousand, one hundred twenty-three".