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12121110137 is a prime number
BaseRepresentation
bin10110100100111100…
…10111011001111001
31011021202000012020002
423102132113121321
5144311001011022
65322433242345
7606241510343
oct132236273171
934252005202
1012121110137
1151600614a4
1224234033b5
1311b2289b26
1482db46293
154ae1e5092
hex2d2797679

12121110137 has 2 divisors, whose sum is σ = 12121110138. Its totient is φ = 12121110136.

The previous prime is 12121110061. The next prime is 12121110151. The reversal of 12121110137 is 73101112121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8058832441 + 4062277696 = 89771^2 + 63736^2 .

It is a cyclic number.

It is not a de Polignac number, because 12121110137 - 216 = 12121044601 is a prime.

It is not a weakly prime, because it can be changed into another prime (12121110187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060555068 + 6060555069.

It is an arithmetic number, because the mean of its divisors is an integer number (6060555069).

Almost surely, 212121110137 is an apocalyptic number.

It is an amenable number.

12121110137 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121110137 is an equidigital number, since it uses as much as digits as its factorization.

12121110137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 20.

Adding to 12121110137 its reverse (73101112121), we get a palindrome (85222222258).

The spelling of 12121110137 in words is "twelve billion, one hundred twenty-one million, one hundred ten thousand, one hundred thirty-seven".