1353433212021 has 8 divisors (see below), whose sum is σ = 1968630126624. Its totient is φ = 820262552720.

The previous prime is 1353433211987. The next prime is 1353433212151. The reversal of 1353433212021 is 1202123343531.

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 1353433212021 - 2³⁰ = 1352359470197 is a prime.

It is a super-2 number, since 2×1353433212021² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1353433212021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1353433212721) 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, 20506563786 + ... + 20506563851.

It is an arithmetic number, because the mean of its divisors is an integer number (246078765828).

Almost surely, 2^{1353433212021} is an apocalyptic number.

1353433212021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1353433212021 is a deficient number, since it is larger than the sum of its proper divisors (615196914603).

1353433212021 is a wasteful number, since it uses less digits than its factorization.

1353433212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41013127651.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 1353433212021 its reverse (1202123343531), we get a palindrome (2555556555552).

The spelling of 1353433212021 in words is "one trillion, three hundred fifty-three billion, four hundred thirty-three million, two hundred twelve thousand, twenty-one".