423111512 has 8 divisors (see below), whose sum is σ = 793334100. Its totient is φ = 211555752.

The previous prime is 423111511. The next prime is 423111527. The reversal of 423111512 is 215111324.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×423111512² = 358046703173852288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423111511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26444462 + ... + 26444477.

Almost surely, 2^423111512 is an apocalyptic number.

It is an amenable number.

423111512 is a deficient number, since it is larger than the sum of its proper divisors (370222588).

423111512 is a wasteful number, since it uses less digits than its factorization.

423111512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52888945 (or 52888941 counting only the distinct ones).

The product of its digits is 240, while the sum is 20.

The square root of 423111512 is about 20569.6745720490. The cubic root of 423111512 is about 750.7320331227.

Adding to 423111512 its reverse (215111324), we get a palindrome (638222836).

The spelling of 423111512 in words is "four hundred twenty-three million, one hundred eleven thousand, five hundred twelve".