420213201431 has 4 divisors (see below), whose sum is σ = 421887357864. Its totient is φ = 418539045000.

The previous prime is 420213201407. The next prime is 420213201437. The reversal of 420213201431 is 134102312024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420213201431 is a prime.

It is a super-2 number, since 2×420213201431² (a number of 24 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 = 420213201397 and 420213201406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420213201437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837077840 + ... + 837078341.

It is an arithmetic number, because the mean of its divisors is an integer number (105471839466).

Almost surely, 2^420213201431 is an apocalyptic number.

420213201431 is a deficient number, since it is larger than the sum of its proper divisors (1674156433).

420213201431 is a wasteful number, since it uses less digits than its factorization.

420213201431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674156432.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 420213201431 its reverse (134102312024), we get a palindrome (554315513455).

The spelling of 420213201431 in words is "four hundred twenty billion, two hundred thirteen million, two hundred one thousand, four hundred thirty-one".