511121012 has 24 divisors (see below), whose sum is σ = 911047200. Its totient is φ = 250835616.

The previous prime is 511121011. The next prime is 511121021. The reversal of 511121012 is 210121115.

It is a super-2 number, since 2×511121012² = 522489377815808288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511121011) 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 in 7 ways as a sum of consecutive naturals, for example, 200039 + ... + 202577.

It is an arithmetic number, because the mean of its divisors is an integer number (37960300).

Almost surely, 2^511121012 is an apocalyptic number.

It is an amenable number.

511121012 is a deficient number, since it is larger than the sum of its proper divisors (399926188).

511121012 is a wasteful number, since it uses less digits than its factorization.

511121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3455 (or 3453 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 14.

The square root of 511121012 is about 22607.9855803209. The cubic root of 511121012 is about 799.5419315166.

Adding to 511121012 its reverse (210121115), we get a palindrome (721242127).

The spelling of 511121012 in words is "five hundred eleven million, one hundred twenty-one thousand, twelve".