121145520107 has 2 divisors, whose sum is σ = 121145520108. Its totient is φ = 121145520106.

The previous prime is 121145520043. The next prime is 121145520131. The reversal of 121145520107 is 701025541121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121145520107 - 2⁶ = 121145520043 is a prime.

It is a super-3 number, since 3×121145520107³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121145520107.

It is not a weakly prime, because it can be changed into another prime (121145520607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60572760053 + 60572760054.

It is an arithmetic number, because the mean of its divisors is an integer number (60572760054).

Almost surely, 2^121145520107 is an apocalyptic number.

121145520107 is a deficient number, since it is larger than the sum of its proper divisors (1).

121145520107 is an equidigital number, since it uses as much as digits as its factorization.

121145520107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2800, while the sum is 29.

The spelling of 121145520107 in words is "one hundred twenty-one billion, one hundred forty-five million, five hundred twenty thousand, one hundred seven".