511351112131 has 4 divisors (see below), whose sum is σ = 511457803992. Its totient is φ = 511244420272.

The previous prime is 511351112119. The next prime is 511351112171. The reversal of 511351112131 is 131211153115.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 511351112131 - 2⁷ = 511351112003 is a prime.

It is a super-2 number, since 2×511351112131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 511351112096 and 511351112105.

It is not an unprimeable number, because it can be changed into a prime (511351112171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53338741 + ... + 53348326.

It is an arithmetic number, because the mean of its divisors is an integer number (127864450998).

Almost surely, 2^511351112131 is an apocalyptic number.

511351112131 is a deficient number, since it is larger than the sum of its proper divisors (106691861).

511351112131 is a wasteful number, since it uses less digits than its factorization.

511351112131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106691860.

The product of its digits is 450, while the sum is 25.

Adding to 511351112131 its reverse (131211153115), we get a palindrome (642562265246).

The spelling of 511351112131 in words is "five hundred eleven billion, three hundred fifty-one million, one hundred twelve thousand, one hundred thirty-one".