420043031215 has 16 divisors (see below), whose sum is σ = 505677569760. Its totient is φ = 334951827840.

The previous prime is 420043031207. The next prime is 420043031257. The reversal of 420043031215 is 512130340024.

It is not a de Polignac number, because 420043031215 - 2³ = 420043031207 is a prime.

It is a super-2 number, since 2×420043031215² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 420043031215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2414581 + ... + 2582689.

It is an arithmetic number, because the mean of its divisors is an integer number (31604848110).

Almost surely, 2^420043031215 is an apocalyptic number.

420043031215 is a deficient number, since it is larger than the sum of its proper divisors (85634538545).

420043031215 is a wasteful number, since it uses less digits than its factorization.

420043031215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169722.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 420043031215 its reverse (512130340024), we get a palindrome (932173371239).

The spelling of 420043031215 in words is "four hundred twenty billion, forty-three million, thirty-one thousand, two hundred fifteen".