121042433111 has 2 divisors, whose sum is σ = 121042433112. Its totient is φ = 121042433110.

The previous prime is 121042433101. The next prime is 121042433173. The reversal of 121042433111 is 111334240121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121042433111 - 2¹⁸ = 121042170967 is a prime.

It is a super-2 number, since 2×121042433111² (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 (121042433101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60521216555 + 60521216556.

It is an arithmetic number, because the mean of its divisors is an integer number (60521216556).

Almost surely, 2^121042433111 is an apocalyptic number.

121042433111 is a deficient number, since it is larger than the sum of its proper divisors (1).

121042433111 is an equidigital number, since it uses as much as digits as its factorization.

121042433111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 121042433111 its reverse (111334240121), we get a palindrome (232376673232).

The spelling of 121042433111 in words is "one hundred twenty-one billion, forty-two million, four hundred thirty-three thousand, one hundred eleven".