420126543223743 has 4 divisors (see below), whose sum is σ = 560168724298328. Its totient is φ = 280084362149160.

The previous prime is 420126543223627. The next prime is 420126543223757. The reversal of 420126543223743 is 347322345621024.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 420126543223743 - 2²⁴ = 420126526446527 is a prime.

It is a super-2 number, since 2×420126543223743² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420126543223692 and 420126543223701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420126543223043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70021090537288 + ... + 70021090537293.

It is an arithmetic number, because the mean of its divisors is an integer number (140042181074582).

Almost surely, 2^{420126543223743} is an apocalyptic number.

420126543223743 is a deficient number, since it is larger than the sum of its proper divisors (140042181074585).

420126543223743 is a wasteful number, since it uses less digits than its factorization.

420126543223743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140042181074584.

The product of its (nonzero) digits is 5806080, while the sum is 48.

Adding to 420126543223743 its reverse (347322345621024), we get a palindrome (767448888844767).

The spelling of 420126543223743 in words is "four hundred twenty trillion, one hundred twenty-six billion, five hundred forty-three million, two hundred twenty-three thousand, seven hundred forty-three".