121444623259 has 2 divisors, whose sum is σ = 121444623260. Its totient is φ = 121444623258.

The previous prime is 121444623257. The next prime is 121444623319. The reversal of 121444623259 is 952326444121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121444623259 - 2¹ = 121444623257 is a prime.

It is a super-3 number, since 3×121444623259³ (a number of 34 digits) contains 333 as substring.

Together with 121444623257, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (121444623257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60722311629 + 60722311630.

It is an arithmetic number, because the mean of its divisors is an integer number (60722311630).

Almost surely, 2^121444623259 is an apocalyptic number.

121444623259 is a deficient number, since it is larger than the sum of its proper divisors (1).

121444623259 is an equidigital number, since it uses as much as digits as its factorization.

121444623259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 43.

The spelling of 121444623259 in words is "one hundred twenty-one billion, four hundred forty-four million, six hundred twenty-three thousand, two hundred fifty-nine".