31120000206 has 8 divisors (see below), whose sum is σ = 62240000424. Its totient is φ = 10373333400.

The previous prime is 31120000181. The next prime is 31120000207. The reversal of 31120000206 is 60200002113.

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

31120000206 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31120000207) 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, 2593333345 + ... + 2593333356.

It is an arithmetic number, because the mean of its divisors is an integer number (7780000053).

Almost surely, 2^31120000206 is an apocalyptic number.

31120000206 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31120000206 is a wasteful number, since it uses less digits than its factorization.

31120000206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5186666706.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 31120000206 its reverse (60200002113), we get a palindrome (91320002319).

The spelling of 31120000206 in words is "thirty-one billion, one hundred twenty million, two hundred six", and thus it is an aban number.