31311020201001 has 8 divisors (see below), whose sum is σ = 41756106697344. Its totient is φ = 20869973586000.

The previous prime is 31311020200963. The next prime is 31311020201051. The reversal of 31311020201001 is 10010202011313.

It is a happy number.

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

It is not a de Polignac number, because 31311020201001 - 2¹⁸ = 31311019938857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31311020201051) 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, 1009952250 + ... + 1009983251.

It is an arithmetic number, because the mean of its divisors is an integer number (5219513337168).

Almost surely, 2^{31311020201001} is an apocalyptic number.

It is an amenable number.

31311020201001 is a deficient number, since it is larger than the sum of its proper divisors (10445086496343).

31311020201001 is a wasteful number, since it uses less digits than its factorization.

31311020201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019940671.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 31311020201001 its reverse (10010202011313), we get a palindrome (41321222212314).

The spelling of 31311020201001 in words is "thirty-one trillion, three hundred eleven billion, twenty million, two hundred one thousand, one".