420413431353 has 4 divisors (see below), whose sum is σ = 560551241808. Its totient is φ = 280275620900.

The previous prime is 420413431351. The next prime is 420413431397. The reversal of 420413431353 is 353134314024.

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 420413431353 - 2¹ = 420413431351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420413431351) 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, 70068905223 + ... + 70068905228.

It is an arithmetic number, because the mean of its divisors is an integer number (140137810452).

Almost surely, 2^420413431353 is an apocalyptic number.

It is an amenable number.

420413431353 is a deficient number, since it is larger than the sum of its proper divisors (140137810455).

420413431353 is a wasteful number, since it uses less digits than its factorization.

420413431353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140137810454.

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 420413431353 its reverse (353134314024), we get a palindrome (773547745377).

The spelling of 420413431353 in words is "four hundred twenty billion, four hundred thirteen million, four hundred thirty-one thousand, three hundred fifty-three".