511021425130 has 16 divisors (see below), whose sum is σ = 923159287080. Its totient is φ = 203670631872.

The previous prime is 511021425107. The next prime is 511021425143. The reversal of 511021425130 is 31524120115.

It can be written as a sum of positive squares in 4 ways, for example, as 359061013089 + 151960412041 = 599217^2 + 389821^2 .

It is a super-2 number, since 2×511021425130² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 511021425095 and 511021425104.

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, 92239365 + ... + 92244904.

Almost surely, 2^511021425130 is an apocalyptic number.

511021425130 is a deficient number, since it is larger than the sum of its proper divisors (412137861950).

511021425130 is a wasteful number, since it uses less digits than its factorization.

511021425130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184484553.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 511021425130 its reverse (31524120115), we get a palindrome (542545545245).

The spelling of 511021425130 in words is "five hundred eleven billion, twenty-one million, four hundred twenty-five thousand, one hundred thirty".