20403202253035 has 24 divisors (see below), whose sum is σ = 28481760549936. Its totient is φ = 13990494248640.

The previous prime is 20403202253023. The next prime is 20403202253051. The reversal of 20403202253035 is 53035220230402.

It is a happy number.

It is not a de Polignac number, because 20403202253035 - 2¹¹ = 20403202250987 is a prime.

It is a super-2 number, since 2×20403202253035² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20403202252988 and 20403202253006.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12192340 + ... + 13764430.

It is an arithmetic number, because the mean of its divisors is an integer number (1186740022914).

Almost surely, 2^{20403202253035} is an apocalyptic number.

20403202253035 is a deficient number, since it is larger than the sum of its proper divisors (8078558296901).

20403202253035 is a wasteful number, since it uses less digits than its factorization.

20403202253035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625083 (or 1625076 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 31.

Adding to 20403202253035 its reverse (53035220230402), we get a palindrome (73438422483437).

The spelling of 20403202253035 in words is "twenty trillion, four hundred three billion, two hundred two million, two hundred fifty-three thousand, thirty-five".