31300003213 has 8 divisors (see below), whose sum is σ = 32338641920. Its totient is φ = 30263174640.

The previous prime is 31300003199. The next prime is 31300003243. The reversal of 31300003213 is 31230000313.

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

It is not a de Polignac number, because 31300003213 - 2³³ = 22710068621 is a prime.

It is a super-2 number, since 2×31300003213² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31300003243) 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, 417333 + ... + 486586.

It is an arithmetic number, because the mean of its divisors is an integer number (4042330240).

Almost surely, 2^31300003213 is an apocalyptic number.

It is an amenable number.

31300003213 is a deficient number, since it is larger than the sum of its proper divisors (1038638707).

31300003213 is a wasteful number, since it uses less digits than its factorization.

31300003213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905067.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 31300003213 its reverse (31230000313), we get a palindrome (62530003526).

The spelling of 31300003213 in words is "thirty-one billion, three hundred million, three thousand, two hundred thirteen".