12126914357 has 2 divisors, whose sum is σ = 12126914358. Its totient is φ = 12126914356.

The previous prime is 12126914353. The next prime is 12126914411. The reversal of 12126914357 is 75341962121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10628372836 + 1498541521 = 103094^2 + 38711^2 .

It is a cyclic number.

It is not a de Polignac number, because 12126914357 - 2² = 12126914353 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12126914353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6063457178 + 6063457179.

It is an arithmetic number, because the mean of its divisors is an integer number (6063457179).

Almost surely, 2^12126914357 is an apocalyptic number.

It is an amenable number.

12126914357 is a deficient number, since it is larger than the sum of its proper divisors (1).

12126914357 is an equidigital number, since it uses as much as digits as its factorization.

12126914357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 41.

The spelling of 12126914357 in words is "twelve billion, one hundred twenty-six million, nine hundred fourteen thousand, three hundred fifty-seven".