31330100002 has 4 divisors (see below), whose sum is σ = 46995150006. Its totient is φ = 15665050000.

The previous prime is 31330099987. The next prime is 31330100051. The reversal of 31330100002 is 20000103313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27291370401 + 4038729601 = 165201^2 + 63551^2 .

It is a super-2 number, since 2×31330100002² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7832524999 + ... + 7832525002.

Almost surely, 2^31330100002 is an apocalyptic number.

31330100002 is a deficient number, since it is larger than the sum of its proper divisors (15665050004).

31330100002 is a wasteful number, since it uses less digits than its factorization.

31330100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15665050003.

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 31330100002 its reverse (20000103313), we get a palindrome (51330203315).

The spelling of 31330100002 in words is "thirty-one billion, three hundred thirty million, one hundred thousand, two".