31333211021130 has 32 divisors (see below), whose sum is σ = 75889612022400. Its totient is φ = 8278866764352.

The previous prime is 31333211021059. The next prime is 31333211021141. The reversal of 31333211021130 is 3112011233313.

It is a super-2 number, since 2×31333211021130² (a number of 28 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 31333211021130.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4791007590 + ... + 4791014129.

It is an arithmetic number, because the mean of its divisors is an integer number (2371550375700).

Almost surely, 2^{31333211021130} is an apocalyptic number.

31333211021130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31333211021130 is an abundant number, since it is smaller than the sum of its proper divisors (44556401001270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31333211021130 is a wasteful number, since it uses less digits than its factorization.

31333211021130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9582021838.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 31333211021130 its reverse (3112011233313), we get a palindrome (34445222254443).

The spelling of 31333211021130 in words is "thirty-one trillion, three hundred thirty-three billion, two hundred eleven million, twenty-one thousand, one hundred thirty".