421061544641231 has 8 divisors (see below), whose sum is σ = 453451364703120. Its totient is φ = 388671791789952.

The previous prime is 421061544641197. The next prime is 421061544641249. The reversal of 421061544641231 is 132146445160124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421061544641231 is a prime.

It is a super-2 number, since 2×421061544641231² (a number of 30 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 (421061544641431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3394865 + ... + 29217258.

It is an arithmetic number, because the mean of its divisors is an integer number (56681420587890).

Almost surely, 2^{421061544641231} is an apocalyptic number.

421061544641231 is a deficient number, since it is larger than the sum of its proper divisors (32389820061889).

421061544641231 is a wasteful number, since it uses less digits than its factorization.

421061544641231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33605305.

The product of its (nonzero) digits is 552960, while the sum is 44.

The spelling of 421061544641231 in words is "four hundred twenty-one trillion, sixty-one billion, five hundred forty-four million, six hundred forty-one thousand, two hundred thirty-one".