421244034013 has 12 divisors (see below), whose sum is σ = 463468668124. Its totient is φ = 382578292800.

The previous prime is 421244033993. The next prime is 421244034019. The reversal of 421244034013 is 310430442124.

It can be written as a sum of positive squares in 2 ways, for example, as 414913763044 + 6330270969 = 644138^2 + 79563^2 .

It is not a de Polignac number, because 421244034013 - 2¹³ = 421244025821 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421244034019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1560078 + ... + 1810063.

Almost surely, 2^421244034013 is an apocalyptic number.

It is an amenable number.

421244034013 is a deficient number, since it is larger than the sum of its proper divisors (42224634111).

421244034013 is a wasteful number, since it uses less digits than its factorization.

421244034013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3371196 (or 3371185 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 421244034013 its reverse (310430442124), we get a palindrome (731674476137).

The spelling of 421244034013 in words is "four hundred twenty-one billion, two hundred forty-four million, thirty-four thousand, thirteen".