31321121322201 has 8 divisors (see below), whose sum is σ = 42174975246144. Its totient is φ = 20674007473200.

The previous prime is 31321121322107. The next prime is 31321121322259. The reversal of 31321121322201 is 10222312112313.

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

It is not a de Polignac number, because 31321121322201 - 2¹⁸ = 31321121060057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31321121322401) 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, 51685018381 + ... + 51685018986.

It is an arithmetic number, because the mean of its divisors is an integer number (5271871905768).

Almost surely, 2^{31321121322201} is an apocalyptic number.

It is an amenable number.

31321121322201 is a deficient number, since it is larger than the sum of its proper divisors (10853853923943).

31321121322201 is a wasteful number, since it uses less digits than its factorization.

31321121322201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103370037471.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 31321121322201 its reverse (10222312112313), we get a palindrome (41543433434514).

The spelling of 31321121322201 in words is "thirty-one trillion, three hundred twenty-one billion, one hundred twenty-one million, three hundred twenty-two thousand, two hundred one".