120211013 has 8 divisors (see below), whose sum is σ = 129553368. Its totient is φ = 110882304.

The previous prime is 120211009. The next prime is 120211019. The reversal of 120211013 is 310112021.

It can be written as a sum of positive squares in 4 ways, for example, as 2553604 + 117657409 = 1598^2 + 10847^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120211013 - 2² = 120211009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120210985 and 120211003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120211019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21881 + ... + 26817.

It is an arithmetic number, because the mean of its divisors is an integer number (16194171).

Almost surely, 2^120211013 is an apocalyptic number.

120211013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

120211013 is a deficient number, since it is larger than the sum of its proper divisors (9342355).

120211013 is a wasteful number, since it uses less digits than its factorization.

120211013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6823.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 120211013 is about 10964.0783014351. The cubic root of 120211013 is about 493.5313582402.

Adding to 120211013 its reverse (310112021), we get a palindrome (430323034).

The spelling of 120211013 in words is "one hundred twenty million, two hundred eleven thousand, thirteen".