31221304143009 has 8 divisors (see below), whose sum is σ = 42017456043360. Its totient is φ = 20619677502336.

The previous prime is 31221304142933. The next prime is 31221304143011. The reversal of 31221304143009 is 90034140312213.

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

It is not a de Polignac number, because 31221304143009 - 2⁷ = 31221304142881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31221304143019) 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, 48631314544 + ... + 48631315185.

It is an arithmetic number, because the mean of its divisors is an integer number (5252182005420).

Almost surely, 2^{31221304143009} is an apocalyptic number.

It is an amenable number.

31221304143009 is a deficient number, since it is larger than the sum of its proper divisors (10796151900351).

31221304143009 is a wasteful number, since it uses less digits than its factorization.

31221304143009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97262629839.

The product of its (nonzero) digits is 15552, while the sum is 33.

The spelling of 31221304143009 in words is "thirty-one trillion, two hundred twenty-one billion, three hundred four million, one hundred forty-three thousand, nine".