2031440143220 has 12 divisors (see below), whose sum is σ = 4266024300804. Its totient is φ = 812576057280.

The previous prime is 2031440143163. The next prime is 2031440143259. The reversal of 2031440143220 is 223410441302.

It can be written as a sum of positive squares in 2 ways, for example, as 984325905424 + 1047114237796 = 992132^2 + 1023286^2 .

It is a super-2 number, since 2×2031440143220² (a number of 25 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 2031440143220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50786003561 + ... + 50786003600.

It is an arithmetic number, because the mean of its divisors is an integer number (355502025067).

Almost surely, 2^{2031440143220} is an apocalyptic number.

2031440143220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031440143220 is an abundant number, since it is smaller than the sum of its proper divisors (2234584157584).

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

2031440143220 is a wasteful number, since it uses less digits than its factorization.

2031440143220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101572007170 (or 101572007168 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 2031440143220 its reverse (223410441302), we get a palindrome (2254850584522).

The spelling of 2031440143220 in words is "two trillion, thirty-one billion, four hundred forty million, one hundred forty-three thousand, two hundred twenty".