10502020403121 has 8 divisors (see below), whose sum is σ = 15079824168640. Its totient is φ = 6462781786512.

The previous prime is 10502020403087. The next prime is 10502020403123. The reversal of 10502020403121 is 12130402020501.

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

It is not a de Polignac number, because 10502020403121 - 2¹⁷ = 10502020272049 is a prime.

It is a super-2 number, since 2×10502020403121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10502020403123) 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, 134641287181 + ... + 134641287258.

It is an arithmetic number, because the mean of its divisors is an integer number (1884978021080).

Almost surely, 2^{10502020403121} is an apocalyptic number.

It is an amenable number.

10502020403121 is a deficient number, since it is larger than the sum of its proper divisors (4577803765519).

10502020403121 is a wasteful number, since it uses less digits than its factorization.

10502020403121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269282574455.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 10502020403121 its reverse (12130402020501), we get a palindrome (22632422423622).

The spelling of 10502020403121 in words is "ten trillion, five hundred two billion, twenty million, four hundred three thousand, one hundred twenty-one".