31322201201101 has 4 divisors (see below), whose sum is σ = 31645110491932. Its totient is φ = 30999291910272.

The previous prime is 31322201201063. The next prime is 31322201201107. The reversal of 31322201201101 is 10110210222313.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9663555607876 + 21658645593225 = 3108626^2 + 4653885^2 .

It is a cyclic number.

It is not a de Polignac number, because 31322201201101 - 2¹¹ = 31322201199053 is a prime.

It is a super-2 number, since 2×31322201201101² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31322201201107) 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, 161454645270 + ... + 161454645463.

It is an arithmetic number, because the mean of its divisors is an integer number (7911277622983).

Almost surely, 2^{31322201201101} is an apocalyptic number.

It is an amenable number.

31322201201101 is a deficient number, since it is larger than the sum of its proper divisors (322909290831).

31322201201101 is an equidigital number, since it uses as much as digits as its factorization.

31322201201101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322909290830.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 31322201201101 its reverse (10110210222313), we get a palindrome (41432411423414).

The spelling of 31322201201101 in words is "thirty-one trillion, three hundred twenty-two billion, two hundred one million, two hundred one thousand, one hundred one".