20353330021142 has 24 divisors (see below), whose sum is σ = 32573139771360. Its totient is φ = 9536212103040.

The previous prime is 20353330021117. The next prime is 20353330021181. The reversal of 20353330021142 is 24112003335302.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76752734 + ... + 77017457.

It is an arithmetic number, because the mean of its divisors is an integer number (1357214157140).

Almost surely, 2^{20353330021142} is an apocalyptic number.

20353330021142 is a deficient number, since it is larger than the sum of its proper divisors (12219809750218).

20353330021142 is a wasteful number, since it uses less digits than its factorization.

20353330021142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153770456 (or 153770439 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 20353330021142 its reverse (24112003335302), we get a palindrome (44465333356444).

The spelling of 20353330021142 in words is "twenty trillion, three hundred fifty-three billion, three hundred thirty million, twenty-one thousand, one hundred forty-two".