511031340312 has 64 divisors (see below), whose sum is σ = 1317406325760. Its totient is φ = 165088416000.

The previous prime is 511031340293. The next prime is 511031340359. The reversal of 511031340312 is 213043130115.

It is a super-2 number, since 2×511031340312² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1571088 + ... + 1868255.

It is an arithmetic number, because the mean of its divisors is an integer number (20584473840).

Almost surely, 2^511031340312 is an apocalyptic number.

It is an amenable number.

511031340312 is an abundant number, since it is smaller than the sum of its proper divisors (806374985448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

511031340312 is a wasteful number, since it uses less digits than its factorization.

511031340312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3439544 (or 3439540 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 511031340312 its reverse (213043130115), we get a palindrome (724074470427).

The spelling of 511031340312 in words is "five hundred eleven billion, thirty-one million, three hundred forty thousand, three hundred twelve".