121311242119 has 2 divisors, whose sum is σ = 121311242120. Its totient is φ = 121311242118.

The previous prime is 121311242081. The next prime is 121311242131. The reversal of 121311242119 is 911242113121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121311242119 - 2¹⁹ = 121310717831 is a prime.

It is a super-2 number, since 2×121311242119² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121311242179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60655621059 + 60655621060.

It is an arithmetic number, because the mean of its divisors is an integer number (60655621060).

Almost surely, 2^121311242119 is an apocalyptic number.

121311242119 is a deficient number, since it is larger than the sum of its proper divisors (1).

121311242119 is an equidigital number, since it uses as much as digits as its factorization.

121311242119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 28.

The spelling of 121311242119 in words is "one hundred twenty-one billion, three hundred eleven million, two hundred forty-two thousand, one hundred nineteen".