421144230311 has 16 divisors (see below), whose sum is σ = 483462929664. Its totient is φ = 359364917184.

The previous prime is 421144230253. The next prime is 421144230313. The reversal of 421144230311 is 113032441124.

It is a de Polignac number, because none of the positive numbers 2^k-421144230311 is a prime.

It is a super-2 number, since 2×421144230311² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421144230313) 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, 10096280 + ... + 10137906.

It is an arithmetic number, because the mean of its divisors is an integer number (30216433104).

Almost surely, 2^421144230311 is an apocalyptic number.

421144230311 is a deficient number, since it is larger than the sum of its proper divisors (62318699353).

421144230311 is a wasteful number, since it uses less digits than its factorization.

421144230311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48070.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 421144230311 its reverse (113032441124), we get a palindrome (534176671435).

The spelling of 421144230311 in words is "four hundred twenty-one billion, one hundred forty-four million, two hundred thirty thousand, three hundred eleven".