511025123030 has 16 divisors (see below), whose sum is σ = 959838492384. Its totient is φ = 195522655680.

The previous prime is 511025122991. The next prime is 511025123051. The reversal of 511025123030 is 30321520115.

It is a happy number.

It is a super-2 number, since 2×511025123030² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 511025122987 and 511025123005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1110923951 + ... + 1110924410.

It is an arithmetic number, because the mean of its divisors is an integer number (59989905774).

Almost surely, 2^511025123030 is an apocalyptic number.

511025123030 is a deficient number, since it is larger than the sum of its proper divisors (448813369354).

511025123030 is a wasteful number, since it uses less digits than its factorization.

511025123030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221848391.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 511025123030 its reverse (30321520115), we get a palindrome (541346643145).

The spelling of 511025123030 in words is "five hundred eleven billion, twenty-five million, one hundred twenty-three thousand, thirty".