121342023103111 has 2 divisors, whose sum is σ = 121342023103112. Its totient is φ = 121342023103110.

The previous prime is 121342023103097. The next prime is 121342023103117. The reversal of 121342023103111 is 111301320243121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121342023103111 - 2¹⁹ = 121342022578823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121342023103117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60671011551555 + 60671011551556.

It is an arithmetic number, because the mean of its divisors is an integer number (60671011551556).

Almost surely, 2^{121342023103111} is an apocalyptic number.

121342023103111 is a deficient number, since it is larger than the sum of its proper divisors (1).

121342023103111 is an equidigital number, since it uses as much as digits as its factorization.

121342023103111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 121342023103111 its reverse (111301320243121), we get a palindrome (232643343346232).

The spelling of 121342023103111 in words is "one hundred twenty-one trillion, three hundred forty-two billion, twenty-three million, one hundred three thousand, one hundred eleven".