421155105111441 has 48 divisors (see below), whose sum is σ = 630246781532160. Its totient is φ = 270685913541120.

The previous prime is 421155105111407. The next prime is 421155105111451. The reversal of 421155105111441 is 144111501551124.

421155105111441 is a `hidden beast` number, since 4 + 2 + 1 + 1 + 551 + 0 + 51 + 1 + 14 + 41 = 666.

It is not a de Polignac number, because 421155105111441 - 2¹⁰ = 421155105110417 is a prime.

It is a super-2 number, since 2×421155105111441² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421155105111396 and 421155105111405.

It is not an unprimeable number, because it can be changed into a prime (421155105111451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 969509296 + ... + 969943598.

It is an arithmetic number, because the mean of its divisors is an integer number (13130141281920).

Almost surely, 2^{421155105111441} is an apocalyptic number.

It is an amenable number.

421155105111441 is a deficient number, since it is larger than the sum of its proper divisors (209091676420719).

421155105111441 is a wasteful number, since it uses less digits than its factorization.

421155105111441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439846 (or 439843 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 36.

Adding to 421155105111441 its reverse (144111501551124), we get a palindrome (565266606662565).

The spelling of 421155105111441 in words is "four hundred twenty-one trillion, one hundred fifty-five billion, one hundred five million, one hundred eleven thousand, four hundred forty-one".