1240121021333 has 8 divisors (see below), whose sum is σ = 1244575369440. Its totient is φ = 1235674361520.

The previous prime is 1240121021327. The next prime is 1240121021353. The reversal of 1240121021333 is 3331201210421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1240121021333 - 2²⁶ = 1240053912469 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1240121021299 and 1240121021308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240121021353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1598798 + ... + 2244191.

It is an arithmetic number, because the mean of its divisors is an integer number (155571921180).

Almost surely, 2^{1240121021333} is an apocalyptic number.

It is an amenable number.

1240121021333 is a deficient number, since it is larger than the sum of its proper divisors (4454348107).

1240121021333 is an equidigital number, since it uses as much as digits as its factorization.

1240121021333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3844147.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1240121021333 its reverse (3331201210421), we get a palindrome (4571322231754).

The spelling of 1240121021333 in words is "one trillion, two hundred forty billion, one hundred twenty-one million, twenty-one thousand, three hundred thirty-three".