5131042002 has 12 divisors (see below), whose sum is σ = 11117257710. Its totient is φ = 1710347328.

The previous prime is 5131041977. The next prime is 5131042003. The reversal of 5131042002 is 2002401315.

It can be written as a sum of positive squares in only one way, i.e., 5073570441 + 57471561 = 71229^2 + 7581^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 285057889 = 5131042002 / (5 + 1 + 3 + 1 + 0 + 4 + 2 + 0 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (5131042003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142528927 + ... + 142528962.

Almost surely, 2^5131042002 is an apocalyptic number.

5131042002 is an abundant number, since it is smaller than the sum of its proper divisors (5986215708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5131042002 is a wasteful number, since it uses less digits than its factorization.

5131042002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285057897 (or 285057894 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 5131042002 is about 71631.2920587085. The cubic root of 5131042002 is about 1724.7858869722.

Adding to 5131042002 its reverse (2002401315), we get a palindrome (7133443317).

The spelling of 5131042002 in words is "five billion, one hundred thirty-one million, forty-two thousand, two".