2631312402 has 8 divisors (see below), whose sum is σ = 5262624816. Its totient is φ = 877104132.

The previous prime is 2631312379. The next prime is 2631312421. The reversal of 2631312402 is 2042131362.

It is a sphenic number, since it is the product of 3 distinct primes.

2631312402 is an admirable 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, 219276028 + ... + 219276039.

It is an arithmetic number, because the mean of its divisors is an integer number (657828102).

Almost surely, 2^2631312402 is an apocalyptic number.

2631312402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2631312402 is a wasteful number, since it uses less digits than its factorization.

2631312402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438552072.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 2631312402 is about 51296.3195755797. The cubic root of 2631312402 is about 1380.5669451640.

Adding to 2631312402 its reverse (2042131362), we get a palindrome (4673443764).

The spelling of 2631312402 in words is "two billion, six hundred thirty-one million, three hundred twelve thousand, four hundred two".