2120101320 has 64 divisors (see below), whose sum is σ = 6695064000. Its totient is φ = 535603968.

The previous prime is 2120101279. The next prime is 2120101343. The reversal of 2120101320 is 231010212.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2120101296 and 2120101305.

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, 462655 + ... + 467214.

It is an arithmetic number, because the mean of its divisors is an integer number (104610375).

Almost surely, 2^2120101320 is an apocalyptic number.

2120101320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120101320 is an abundant number, since it is smaller than the sum of its proper divisors (4574962680).

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

2120101320 is a wasteful number, since it uses less digits than its factorization.

2120101320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929902 (or 929898 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2120101320 is about 46044.5579846305. The cubic root of 2120101320 is about 1284.6521226191.

Adding to 2120101320 its reverse (231010212), we get a palindrome (2351111532).

The spelling of 2120101320 in words is "two billion, one hundred twenty million, one hundred one thousand, three hundred twenty".