121110137 has 2 divisors, whose sum is σ = 121110138. Its totient is φ = 121110136.

The previous prime is 121110127. The next prime is 121110163. The reversal of 121110137 is 731011121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69039481 + 52070656 = 8309^2 + 7216^2 .

It is a cyclic number.

It is not a de Polignac number, because 121110137 - 2¹⁶ = 121044601 is a prime.

It is not a weakly prime, because it can be changed into another prime (121110127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60555068 + 60555069.

It is an arithmetic number, because the mean of its divisors is an integer number (60555069).

Almost surely, 2^121110137 is an apocalyptic number.

It is an amenable number.

121110137 is a deficient number, since it is larger than the sum of its proper divisors (1).

121110137 is an equidigital number, since it uses as much as digits as its factorization.

121110137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42, while the sum is 17.

The square root of 121110137 is about 11005.0050885949. The cubic root of 121110137 is about 494.7587669243.

Adding to 121110137 its reverse (731011121), we get a palindrome (852121258).

The spelling of 121110137 in words is "one hundred twenty-one million, one hundred ten thousand, one hundred thirty-seven".