31001000223 has 8 divisors (see below), whose sum is σ = 41346978736. Its totient is φ = 20661177600.

The previous prime is 31001000213. The next prime is 31001000231. The reversal of 31001000223 is 32200010013.

It is a happy number.

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

It is not a de Polignac number, because 31001000223 - 2⁶ = 31001000159 is a prime.

It is a super-2 number, since 2×31001000223² (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 = 31001000199 and 31001000208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31001000213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1527208 + ... + 1547373.

It is an arithmetic number, because the mean of its divisors is an integer number (5168372342).

Almost surely, 2^31001000223 is an apocalyptic number.

31001000223 is a deficient number, since it is larger than the sum of its proper divisors (10345978513).

31001000223 is a wasteful number, since it uses less digits than its factorization.

31001000223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3077945.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 31001000223 its reverse (32200010013), we get a palindrome (63201010236).

The spelling of 31001000223 in words is "thirty-one billion, one million, two hundred twenty-three", and thus it is an aban number.