511523011351 has 16 divisors (see below), whose sum is σ = 591252092928. Its totient is φ = 437368982400.

The previous prime is 511523011343. The next prime is 511523011423. The reversal of 511523011351 is 153110325115.

It is not a de Polignac number, because 511523011351 - 2³ = 511523011343 is a prime.

It is a super-2 number, since 2×511523011351² (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 (511523011751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 654705 + ... + 1204858.

It is an arithmetic number, because the mean of its divisors is an integer number (36953255808).

Almost surely, 2^511523011351 is an apocalyptic number.

511523011351 is a deficient number, since it is larger than the sum of its proper divisors (79729081577).

511523011351 is a wasteful number, since it uses less digits than its factorization.

511523011351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861062.

The product of its (nonzero) digits is 2250, while the sum is 28.

Adding to 511523011351 its reverse (153110325115), we get a palindrome (664633336466).

The spelling of 511523011351 in words is "five hundred eleven billion, five hundred twenty-three million, eleven thousand, three hundred fifty-one".