31050105141220 has 96 divisors (see below), whose sum is σ = 71697442553856. Its totient is φ = 11201359075200.

The previous prime is 31050105141217. The next prime is 31050105141227. The reversal of 31050105141220 is 2214150105013.

It is a super-2 number, since 2×31050105141220² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31050105141227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 776795835 + ... + 776835805.

It is an arithmetic number, because the mean of its divisors is an integer number (746848359936).

Almost surely, 2^{31050105141220} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31050105141220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35848721276928).

31050105141220 is an abundant number, since it is smaller than the sum of its proper divisors (40647337412636).

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

31050105141220 is a wasteful number, since it uses less digits than its factorization.

31050105141220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67921 (or 67919 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 31050105141220 its reverse (2214150105013), we get a palindrome (33264255246233).

The spelling of 31050105141220 in words is "thirty-one trillion, fifty billion, one hundred five million, one hundred forty-one thousand, two hundred twenty".