31011211211201 has 8 divisors (see below), whose sum is σ = 33708807586944. Its totient is φ = 28358203205520.

The previous prime is 31011211211117. The next prime is 31011211211213. The reversal of 31011211211201 is 10211211211013.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31011211211201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31011211211201.

It is not an unprimeable number, because it can be changed into a prime (31011211211231) 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, 11147091065 + ... + 11147093846.

It is an arithmetic number, because the mean of its divisors is an integer number (4213600948368).

Almost surely, 2^{31011211211201} is an apocalyptic number.

It is an amenable number.

31011211211201 is a deficient number, since it is larger than the sum of its proper divisors (2697596375743).

31011211211201 is a wasteful number, since it uses less digits than its factorization.

31011211211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22294185031.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 31011211211201 its reverse (10211211211013), we get a palindrome (41222422422214).

The spelling of 31011211211201 in words is "thirty-one trillion, eleven billion, two hundred eleven million, two hundred eleven thousand, two hundred one".