20213111330120 has 16 divisors (see below), whose sum is σ = 45479500492860. Its totient is φ = 8085244532032.

The previous prime is 20213111329979. The next prime is 20213111330143. The reversal of 20213111330120 is 2103311131202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18500201006596 + 1712910323524 = 4301186^2 + 1308782^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20213111330092 and 20213111330101.

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, 252663891587 + ... + 252663891666.

Almost surely, 2^{20213111330120} is an apocalyptic number.

20213111330120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20213111330120 is an abundant number, since it is smaller than the sum of its proper divisors (25266389162740).

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

20213111330120 is a wasteful number, since it uses less digits than its factorization.

20213111330120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505327783264 (or 505327783260 counting only the distinct ones).

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

Adding to 20213111330120 its reverse (2103311131202), we get a palindrome (22316422461322).

The spelling of 20213111330120 in words is "twenty trillion, two hundred thirteen billion, one hundred eleven million, three hundred thirty thousand, one hundred twenty".