421235440530213 has 16 divisors (see below), whose sum is σ = 565897134064320. Its totient is φ = 278704453469184.

The previous prime is 421235440530209. The next prime is 421235440530221. The reversal of 421235440530213 is 312035044532124.

It is a happy number.

It is not a de Polignac number, because 421235440530213 - 2² = 421235440530209 is a prime.

It is a super-4 number, since 4×421235440530213⁴ (a number of 60 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421235440530913) 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, 720515068 + ... + 721099461.

It is an arithmetic number, because the mean of its divisors is an integer number (35368570879020).

Almost surely, 2^{421235440530213} is an apocalyptic number.

It is an amenable number.

421235440530213 is a deficient number, since it is larger than the sum of its proper divisors (144661693534107).

421235440530213 is a wasteful number, since it uses less digits than its factorization.

421235440530213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441615268.

The product of its (nonzero) digits is 345600, while the sum is 39.

The spelling of 421235440530213 in words is "four hundred twenty-one trillion, two hundred thirty-five billion, four hundred forty million, five hundred thirty thousand, two hundred thirteen".