511101051051 has 24 divisors (see below), whose sum is σ = 687174519024. Its totient is φ = 337899356160.

The previous prime is 511101051047. The next prime is 511101051079. The reversal of 511101051051 is 150150101115.

It is not a de Polignac number, because 511101051051 - 2² = 511101051047 is a prime.

It is a super-2 number, since 2×511101051051² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511101051011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40425691 + ... + 40438331.

It is an arithmetic number, because the mean of its divisors is an integer number (28632271626).

Almost surely, 2^511101051051 is an apocalyptic number.

511101051051 is a deficient number, since it is larger than the sum of its proper divisors (176073467973).

511101051051 is a wasteful number, since it uses less digits than its factorization.

511101051051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13359 (or 13130 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 21.

Adding to 511101051051 its reverse (150150101115), we get a palindrome (661251152166).

The spelling of 511101051051 in words is "five hundred eleven billion, one hundred one million, fifty-one thousand, fifty-one".