31002230002 has 8 divisors (see below), whose sum is σ = 46544980716. Its totient is φ = 15487236432.

The previous prime is 31002229967. The next prime is 31002230003. The reversal of 31002230002 is 20003220013.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30050569201 + 951660801 = 173351^2 + 30849^2 .

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

It is a super-2 number, since 2×31002230002² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31002230003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6936493 + ... + 6940960.

Almost surely, 2^31002230002 is an apocalyptic number.

31002230002 is a deficient number, since it is larger than the sum of its proper divisors (15542750714).

31002230002 is a wasteful number, since it uses less digits than its factorization.

31002230002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13878572.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 31002230002 its reverse (20003220013), we get a palindrome (51005450015).

The spelling of 31002230002 in words is "thirty-one billion, two million, two hundred thirty thousand, two".