420021431110 has 16 divisors (see below), whose sum is σ = 765147476016. Its totient is φ = 165984372448.

The previous prime is 420021431099. The next prime is 420021431161. The reversal of 420021431110 is 11134120024.

It is a congruent number.

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, 253024129 + ... + 253025788.

It is an arithmetic number, because the mean of its divisors is an integer number (47821717251).

Almost surely, 2^420021431110 is an apocalyptic number.

420021431110 is a deficient number, since it is larger than the sum of its proper divisors (345126044906).

420021431110 is a wasteful number, since it uses less digits than its factorization.

420021431110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506050007.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 420021431110 its reverse (11134120024), we get a palindrome (431155551134).

It can be divided in two parts, 4200214 and 31110, that added together give a palindrome (4231324).

The spelling of 420021431110 in words is "four hundred twenty billion, twenty-one million, four hundred thirty-one thousand, one hundred ten".