511213112 has 8 divisors (see below), whose sum is σ = 958524600. Its totient is φ = 255606552.

The previous prime is 511213099. The next prime is 511213117. The reversal of 511213112 is 211312115.

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

It is a super-2 number, since 2×511213112² = 522677691761449088, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511213117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31950812 + ... + 31950827.

It is an arithmetic number, because the mean of its divisors is an integer number (119815575).

Almost surely, 2^511213112 is an apocalyptic number.

It is an amenable number.

511213112 is a deficient number, since it is larger than the sum of its proper divisors (447311488).

511213112 is a wasteful number, since it uses less digits than its factorization.

511213112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63901645 (or 63901641 counting only the distinct ones).

The product of its digits is 60, while the sum is 17.

The square root of 511213112 is about 22610.0223794670. The cubic root of 511213112 is about 799.5899523621.

Adding to 511213112 its reverse (211312115), we get a palindrome (722525227).

The spelling of 511213112 in words is "five hundred eleven million, two hundred thirteen thousand, one hundred twelve".