31033220211011 has 8 divisors (see below), whose sum is σ = 33499128264480. Its totient is φ = 28660365291712.

The previous prime is 31033220210981. The next prime is 31033220211067. The reversal of 31033220211011 is 11011202233013.

It is a happy number.

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-31033220211011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31033220210011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23263282850 + ... + 23263284183.

It is an arithmetic number, because the mean of its divisors is an integer number (4187391033060).

Almost surely, 2^{31033220211011} is an apocalyptic number.

31033220211011 is a deficient number, since it is larger than the sum of its proper divisors (2465908053469).

31033220211011 is a wasteful number, since it uses less digits than its factorization.

31033220211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46526567085.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 31033220211011 its reverse (11011202233013), we get a palindrome (42044422444024).

The spelling of 31033220211011 in words is "thirty-one trillion, thirty-three billion, two hundred twenty million, two hundred eleven thousand, eleven".