421532412211013 has 16 divisors (see below), whose sum is σ = 429655549449456. Its totient is φ = 413489851622400.

The previous prime is 421532412210997. The next prime is 421532412211037. The reversal of 421532412211013 is 310112214235124.

It can be written as a sum of positive squares in 8 ways, for example, as 77491013198404 + 344041399012609 = 8802898^2 + 18548353^2 .

It is a cyclic number.

It is not a de Polignac number, because 421532412211013 - 2⁴ = 421532412210997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421532412211913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19065395 + ... + 34735487.

It is an arithmetic number, because the mean of its divisors is an integer number (26853471840591).

Almost surely, 2^{421532412211013} is an apocalyptic number.

It is an amenable number.

421532412211013 is a deficient number, since it is larger than the sum of its proper divisors (8123137238443).

421532412211013 is a wasteful number, since it uses less digits than its factorization.

421532412211013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15672664.

The product of its (nonzero) digits is 11520, while the sum is 32.

Adding to 421532412211013 its reverse (310112214235124), we get a palindrome (731644626446137).

The spelling of 421532412211013 in words is "four hundred twenty-one trillion, five hundred thirty-two billion, four hundred twelve million, two hundred eleven thousand, thirteen".