121354011043 has 2 divisors, whose sum is σ = 121354011044. Its totient is φ = 121354011042.

The previous prime is 121354011041. The next prime is 121354011061. The reversal of 121354011043 is 340110453121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121354011043 - 2¹ = 121354011041 is a prime.

Together with 121354011041, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 121354010999 and 121354011017.

It is not a weakly prime, because it can be changed into another prime (121354011041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60677005521 + 60677005522.

It is an arithmetic number, because the mean of its divisors is an integer number (60677005522).

Almost surely, 2^121354011043 is an apocalyptic number.

121354011043 is a deficient number, since it is larger than the sum of its proper divisors (1).

121354011043 is an equidigital number, since it uses as much as digits as its factorization.

121354011043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 121354011043 its reverse (340110453121), we get a palindrome (461464464164).

The spelling of 121354011043 in words is "one hundred twenty-one billion, three hundred fifty-four million, eleven thousand, forty-three".