420311211431505 has 8 divisors (see below), whose sum is σ = 672497938290432. Its totient is φ = 224165979430128.

The previous prime is 420311211431471. The next prime is 420311211431513. The reversal of 420311211431505 is 505134112113024.

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

It is not a de Polignac number, because 420311211431505 - 2¹¹ = 420311211429457 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14010373714369 + ... + 14010373714398.

It is an arithmetic number, because the mean of its divisors is an integer number (84062242286304).

Almost surely, 2^{420311211431505} is an apocalyptic number.

It is an amenable number.

420311211431505 is a deficient number, since it is larger than the sum of its proper divisors (252186726858927).

420311211431505 is a wasteful number, since it uses less digits than its factorization.

420311211431505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28020747428775.

The product of its (nonzero) digits is 14400, while the sum is 33.

Adding to 420311211431505 its reverse (505134112113024), we get a palindrome (925445323544529).

The spelling of 420311211431505 in words is "four hundred twenty trillion, three hundred eleven billion, two hundred eleven million, four hundred thirty-one thousand, five hundred five".