31133021113311 has 16 divisors (see below), whose sum is σ = 44818745069280. Its totient is φ = 19109530846080.

The previous prime is 31133021113297. The next prime is 31133021113409. The reversal of 31133021113311 is 11331112033113.

It is not a de Polignac number, because 31133021113311 - 2⁶ = 31133021113247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31133021313311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1026055000 + ... + 1026085341.

It is an arithmetic number, because the mean of its divisors is an integer number (2801171566830).

Almost surely, 2^{31133021113311} is an apocalyptic number.

31133021113311 is a deficient number, since it is larger than the sum of its proper divisors (13685723955969).

31133021113311 is a wasteful number, since it uses less digits than its factorization.

31133021113311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052140746.

The product of its (nonzero) digits is 486, while the sum is 24.

Adding to 31133021113311 its reverse (11331112033113), we get a palindrome (42464133146424).

The spelling of 31133021113311 in words is "thirty-one trillion, one hundred thirty-three billion, twenty-one million, one hundred thirteen thousand, three hundred eleven".