5111237128 has 32 divisors (see below), whose sum is σ = 9854559000. Its totient is φ = 2483523072.

The previous prime is 5111237113. The next prime is 5111237137. The reversal of 5111237128 is 8217321115.

It can be written as a sum of positive squares in 4 ways, for example, as 5086257124 + 24980004 = 71318^2 + 4998^2 .

It is a super-2 number, since 2×5111237128² = 52249489957291376768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5111237128.

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, 243598 + ... + 263746.

Almost surely, 2^5111237128 is an apocalyptic number.

It is an amenable number.

5111237128 is a deficient number, since it is larger than the sum of its proper divisors (4743321872).

5111237128 is a wasteful number, since it uses less digits than its factorization.

5111237128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21049 (or 21045 counting only the distinct ones).

The product of its digits is 3360, while the sum is 31.

The square root of 5111237128 is about 71492.9166281528. The cubic root of 5111237128 is about 1722.5639074342.

The spelling of 5111237128 in words is "five billion, one hundred eleven million, two hundred thirty-seven thousand, one hundred twenty-eight".