31032330021201 has 4 divisors (see below), whose sum is σ = 41376440028272. Its totient is φ = 20688220014132.

The previous prime is 31032330021197. The next prime is 31032330021263. The reversal of 31032330021201 is 10212003323013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 31032330021201 - 2² = 31032330021197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31032330021281) 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, 5172055003531 + ... + 5172055003536.

It is an arithmetic number, because the mean of its divisors is an integer number (10344110007068).

Almost surely, 2^{31032330021201} is an apocalyptic number.

It is an amenable number.

31032330021201 is a deficient number, since it is larger than the sum of its proper divisors (10344110007071).

31032330021201 is a wasteful number, since it uses less digits than its factorization.

31032330021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10344110007070.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31032330021201 its reverse (10212003323013), we get a palindrome (41244333344214).

The spelling of 31032330021201 in words is "thirty-one trillion, thirty-two billion, three hundred thirty million, twenty-one thousand, two hundred one".