31089387521201 has 8 divisors (see below), whose sum is σ = 31140166366080. Its totient is φ = 31038610463568.

The previous prime is 31089387521197. The next prime is 31089387521207. The reversal of 31089387521201 is 10212578398013.

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 31089387521201 - 2² = 31089387521197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31089387521201.

It is not an unprimeable number, because it can be changed into a prime (31089387521207) 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, 36919880 + ... + 37752566.

It is an arithmetic number, because the mean of its divisors is an integer number (3892520795760).

Almost surely, 2^{31089387521201} is an apocalyptic number.

It is an amenable number.

31089387521201 is a deficient number, since it is larger than the sum of its proper divisors (50778844879).

31089387521201 is an equidigital number, since it uses as much as digits as its factorization.

31089387521201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893623.

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 31089387521201 in words is "thirty-one trillion, eighty-nine billion, three hundred eighty-seven million, five hundred twenty-one thousand, two hundred one".