423236211589731 has 64 divisors (see below), whose sum is σ = 578849889981440. Its totient is φ = 274996742031360.

The previous prime is 423236211589721. The next prime is 423236211589883. The reversal of 423236211589731 is 137985112632324.

It is a happy number.

It is not a de Polignac number, because 423236211589731 - 2⁵ = 423236211589699 is a prime.

It is a super-2 number, since 2×423236211589731² (a number of 30 digits) contains 22 as substring.

It is the 20572706-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423236211589721) by changing a digit.

It is a nontrivial repunit in base 20572705.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13575255015 + ... + 13575286191.

It is an arithmetic number, because the mean of its divisors is an integer number (9044529530960).

Almost surely, 2^{423236211589731} is an apocalyptic number.

423236211589731 is the 10996574-th nonagonal number.

423236211589731 is a deficient number, since it is larger than the sum of its proper divisors (155613678391709).

423236211589731 is a wasteful number, since it uses less digits than its factorization.

423236211589731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32876.

The product of its digits is 13063680, while the sum is 57.

The spelling of 423236211589731 in words is "four hundred twenty-three trillion, two hundred thirty-six billion, two hundred eleven million, five hundred eighty-nine thousand, seven hundred thirty-one".