511341243142 has 16 divisors (see below), whose sum is σ = 767518627392. Its totient is φ = 255501749160.

The previous prime is 511341243139. The next prime is 511341243221. The reversal of 511341243142 is 241342143115.

It is a happy number.

It is a super-2 number, since 2×511341243142² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 45932917 + ... + 45944047.

It is an arithmetic number, because the mean of its divisors is an integer number (47969914212).

Almost surely, 2^511341243142 is an apocalyptic number.

511341243142 is a deficient number, since it is larger than the sum of its proper divisors (256177384250).

511341243142 is a wasteful number, since it uses less digits than its factorization.

511341243142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24243.

The product of its digits is 11520, while the sum is 31.

Adding to 511341243142 its reverse (241342143115), we get a palindrome (752683386257).

The spelling of 511341243142 in words is "five hundred eleven billion, three hundred forty-one million, two hundred forty-three thousand, one hundred forty-two".