5131123064 has 16 divisors (see below), whose sum is σ = 9621633120. Its totient is φ = 2565354240.

The previous prime is 5131123051. The next prime is 5131123093. The reversal of 5131123064 is 4603211315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147752 + ... + 179144.

It is an arithmetic number, because the mean of its divisors is an integer number (601352070).

Almost surely, 2^5131123064 is an apocalyptic number.

It is an amenable number.

5131123064 is a deficient number, since it is larger than the sum of its proper divisors (4490510056).

5131123064 is a wasteful number, since it uses less digits than its factorization.

5131123064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51830 (or 51826 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 5131123064 is about 71631.8578846033. The cubic root of 5131123064 is about 1724.7949698484.

Adding to 5131123064 its reverse (4603211315), we get a palindrome (9734334379).

The spelling of 5131123064 in words is "five billion, one hundred thirty-one million, one hundred twenty-three thousand, sixty-four".