421301111240 has 32 divisors (see below), whose sum is σ = 973547165880. Its totient is φ = 163965837312.

The previous prime is 421301111213. The next prime is 421301111251. The reversal of 421301111240 is 42111103124.

It can be written as a sum of positive squares in 4 ways, for example, as 286783812484 + 134517298756 = 535522^2 + 366766^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 142329977 + ... + 142332936.

Almost surely, 2^421301111240 is an apocalyptic number.

421301111240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421301111240 is an abundant number, since it is smaller than the sum of its proper divisors (552246054640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421301111240 is a wasteful number, since it uses less digits than its factorization.

421301111240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284662961 (or 284662957 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 421301111240 its reverse (42111103124), we get a palindrome (463412214364).

The spelling of 421301111240 in words is "four hundred twenty-one billion, three hundred one million, one hundred eleven thousand, two hundred forty".