421513002353 has 4 divisors (see below), whose sum is σ = 421550786880. Its totient is φ = 421475217828.

The previous prime is 421513002343. The next prime is 421513002389. The reversal of 421513002353 is 353200315124.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 421513002353 - 2³⁰ = 420439260529 is a prime.

It is a super-2 number, since 2×421513002353² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421513002343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18875525 + ... + 18897842.

It is an arithmetic number, because the mean of its divisors is an integer number (105387696720).

Almost surely, 2^421513002353 is an apocalyptic number.

It is an amenable number.

421513002353 is a deficient number, since it is larger than the sum of its proper divisors (37784527).

421513002353 is a wasteful number, since it uses less digits than its factorization.

421513002353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37784526.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 421513002353 its reverse (353200315124), we get a palindrome (774713317477).

The spelling of 421513002353 in words is "four hundred twenty-one billion, five hundred thirteen million, two thousand, three hundred fifty-three".