511144135343 has 8 divisors (see below), whose sum is σ = 541218149712. Its totient is φ = 481070866816.

The previous prime is 511144135303. The next prime is 511144135351. The reversal of 511144135343 is 343531441115.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 511144135343 - 2⁶ = 511144135279 is a prime.

It is a super-2 number, since 2×511144135343² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511144135303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1877096 + ... + 2132082.

It is an arithmetic number, because the mean of its divisors is an integer number (67652268714).

Almost surely, 2^511144135343 is an apocalyptic number.

511144135343 is a deficient number, since it is larger than the sum of its proper divisors (30074014369).

511144135343 is a wasteful number, since it uses less digits than its factorization.

511144135343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372921.

The product of its digits is 43200, while the sum is 35.

Adding to 511144135343 its reverse (343531441115), we get a palindrome (854675576458).

The spelling of 511144135343 in words is "five hundred eleven billion, one hundred forty-four million, one hundred thirty-five thousand, three hundred forty-three".