10201211331 has 4 divisors (see below), whose sum is σ = 13601615112. Its totient is φ = 6800807552.

The previous prime is 10201211329. The next prime is 10201211381. The reversal of 10201211331 is 13311210201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10201211331 - 2¹ = 10201211329 is a prime.

It is a super-2 number, since 2×10201211331² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10201211331.

It is not an unprimeable number, because it can be changed into a prime (10201211311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1700201886 + ... + 1700201891.

It is an arithmetic number, because the mean of its divisors is an integer number (3400403778).

Almost surely, 2^10201211331 is an apocalyptic number.

10201211331 is a deficient number, since it is larger than the sum of its proper divisors (3400403781).

10201211331 is an equidigital number, since it uses as much as digits as its factorization.

10201211331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400403780.

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

Adding to 10201211331 its reverse (13311210201), we get a palindrome (23512421532).

The spelling of 10201211331 in words is "ten billion, two hundred one million, two hundred eleven thousand, three hundred thirty-one".