240121115233 has 2 divisors, whose sum is σ = 240121115234. Its totient is φ = 240121115232.

The previous prime is 240121115231. The next prime is 240121115287. The reversal of 240121115233 is 332511121042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123571934784 + 116549180449 = 351528^2 + 341393^2 .

It is a cyclic number.

It is not a de Polignac number, because 240121115233 - 2¹ = 240121115231 is a prime.

Together with 240121115231, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 240121115198 and 240121115207.

It is not a weakly prime, because it can be changed into another prime (240121115231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120060557616 + 120060557617.

It is an arithmetic number, because the mean of its divisors is an integer number (120060557617).

Almost surely, 2^240121115233 is an apocalyptic number.

It is an amenable number.

240121115233 is a deficient number, since it is larger than the sum of its proper divisors (1).

240121115233 is an equidigital number, since it uses as much as digits as its factorization.

240121115233 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 240121115233 its reverse (332511121042), we get a palindrome (572632236275).

The spelling of 240121115233 in words is "two hundred forty billion, one hundred twenty-one million, one hundred fifteen thousand, two hundred thirty-three".