121145520607 has 2 divisors, whose sum is σ = 121145520608. Its totient is φ = 121145520606.

The previous prime is 121145520577. The next prime is 121145520623. The reversal of 121145520607 is 706025541121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121145520607 is a prime.

It is a super-3 number, since 3×121145520607³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121145520647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60572760303 + 60572760304.

It is an arithmetic number, because the mean of its divisors is an integer number (60572760304).

Almost surely, 2^121145520607 is an apocalyptic number.

121145520607 is a deficient number, since it is larger than the sum of its proper divisors (1).

121145520607 is an equidigital number, since it uses as much as digits as its factorization.

121145520607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 34.

The spelling of 121145520607 in words is "one hundred twenty-one billion, one hundred forty-five million, five hundred twenty thousand, six hundred seven".