420131206633641 has 16 divisors (see below), whose sum is σ = 561763667290176. Its totient is φ = 279293113696256.

The previous prime is 420131206633613. The next prime is 420131206633679. The reversal of 420131206633641 is 146336602131024.

It is a cyclic number.

It is not a de Polignac number, because 420131206633641 - 2²⁵ = 420131173079209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420131206633593 and 420131206633602.

It is not an unprimeable number, because it can be changed into a prime (420131206633601) 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, 534702121 + ... + 535487273.

It is an arithmetic number, because the mean of its divisors is an integer number (35110229205636).

Almost surely, 2^{420131206633641} is an apocalyptic number.

It is an amenable number.

420131206633641 is a deficient number, since it is larger than the sum of its proper divisors (141632460656535).

420131206633641 is a wasteful number, since it uses less digits than its factorization.

420131206633641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290792.

The product of its (nonzero) digits is 373248, while the sum is 42.

Adding to 420131206633641 its reverse (146336602131024), we get a palindrome (566467808764665).

The spelling of 420131206633641 in words is "four hundred twenty trillion, one hundred thirty-one billion, two hundred six million, six hundred thirty-three thousand, six hundred forty-one".