31000100002 has 8 divisors (see below), whose sum is σ = 46538488476. Its totient is φ = 15487270512.

The previous prime is 31000099997. The next prime is 31000100039. The reversal of 31000100002 is 20000100013.

It can be written as a sum of positive squares in 2 ways, for example, as 26748929601 + 4251170401 = 163551^2 + 65201^2 .

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

It is a super-2 number, since 2×31000100002² (a number of 22 digits) contains 22 as substring.

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, 6386713 + ... + 6391564.

Almost surely, 2^31000100002 is an apocalyptic number.

31000100002 is a deficient number, since it is larger than the sum of its proper divisors (15538388474).

31000100002 is a wasteful number, since it uses less digits than its factorization.

31000100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12779492.

The product of its (nonzero) digits is 6, while the sum is 7.

Adding to 31000100002 its reverse (20000100013), we get a palindrome (51000200015).

The spelling of 31000100002 in words is "thirty-one billion, one hundred thousand, two".