420023302031101 has 4 divisors (see below), whose sum is σ = 444730555091772. Its totient is φ = 395316048970432.

The previous prime is 420023302031051. The next prime is 420023302031129. The reversal of 420023302031101 is 101130203320024.

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

It can be written as a sum of positive squares in 2 ways, for example, as 175409760735225 + 244613541295876 = 13244235^2 + 15640126^2 .

It is a cyclic number.

It is not a de Polignac number, because 420023302031101 - 2⁹ = 420023302030589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420023302031401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12353626530310 + ... + 12353626530343.

It is an arithmetic number, because the mean of its divisors is an integer number (111182638772943).

Almost surely, 2^{420023302031101} is an apocalyptic number.

It is an amenable number.

420023302031101 is a deficient number, since it is larger than the sum of its proper divisors (24707253060671).

420023302031101 is a wasteful number, since it uses less digits than its factorization.

420023302031101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24707253060670.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 420023302031101 its reverse (101130203320024), we get a palindrome (521153505351125).

The spelling of 420023302031101 in words is "four hundred twenty trillion, twenty-three billion, three hundred two million, thirty-one thousand, one hundred one".