31210422131209 has 8 divisors (see below), whose sum is σ = 31345219906560. Its totient is φ = 31075902004656.

The previous prime is 31210422131191. The next prime is 31210422131249. The reversal of 31210422131209 is 90213122401213.

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 31210422131209 - 2⁹ = 31210422130697 is a prime.

It is a super-2 number, since 2×31210422131209² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31210422131249) 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, 69186894 + ... + 69636535.

It is an arithmetic number, because the mean of its divisors is an integer number (3918152488320).

Almost surely, 2^{31210422131209} is an apocalyptic number.

It is an amenable number.

31210422131209 is a deficient number, since it is larger than the sum of its proper divisors (134797775351).

31210422131209 is a wasteful number, since it uses less digits than its factorization.

31210422131209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138824399.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 31210422131209 in words is "thirty-one trillion, two hundred ten billion, four hundred twenty-two million, one hundred thirty-one thousand, two hundred nine".