31002212213 has 8 divisors (see below), whose sum is σ = 35438867328. Its totient is φ = 26567499024.

The previous prime is 31002212167. The next prime is 31002212221. The reversal of 31002212213 is 31221220013.

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

It is a cyclic number.

It is not a de Polignac number, because 31002212213 - 2⁶ = 31002212149 is a prime.

It is a super-2 number, since 2×31002212213² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31002212191 and 31002212200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31002212413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451106 + ... + 515267.

It is an arithmetic number, because the mean of its divisors is an integer number (4429858416).

Almost surely, 2^31002212213 is an apocalyptic number.

It is an amenable number.

31002212213 is a deficient number, since it is larger than the sum of its proper divisors (4436655115).

31002212213 is an equidigital number, since it uses as much as digits as its factorization.

31002212213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970963.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31002212213 its reverse (31221220013), we get a palindrome (62223432226).

The spelling of 31002212213 in words is "thirty-one billion, two million, two hundred twelve thousand, two hundred thirteen".