31020300222011 has 4 divisors (see below), whose sum is σ = 31020404725512. Its totient is φ = 31020195718512.

The previous prime is 31020300221941. The next prime is 31020300222047. The reversal of 31020300222011 is 11022200302013.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31020300222011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31020300222091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51805226 + ... + 52400591.

It is an arithmetic number, because the mean of its divisors is an integer number (7755101181378).

Almost surely, 2^{31020300222011} is an apocalyptic number.

31020300222011 is a deficient number, since it is larger than the sum of its proper divisors (104503501).

31020300222011 is a wasteful number, since it uses less digits than its factorization.

31020300222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104503500.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31020300222011 its reverse (11022200302013), we get a palindrome (42042500524024).

The spelling of 31020300222011 in words is "thirty-one trillion, twenty billion, three hundred million, two hundred twenty-two thousand, eleven".