2011430121 has 8 divisors (see below), whose sum is σ = 2709555744. Its totient is φ = 1327128960.

The previous prime is 2011430107. The next prime is 2011430137. The reversal of 2011430121 is 1210341102.

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

It is not a de Polignac number, because 2011430121 - 2¹⁷ = 2011299049 is a prime.

It is a super-2 number, since 2×2011430121² = 8091702263332149282, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2011430121.

It is not an unprimeable number, because it can be changed into a prime (2011430321) 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, 3455775 + ... + 3456356.

It is an arithmetic number, because the mean of its divisors is an integer number (338694468).

Almost surely, 2^2011430121 is an apocalyptic number.

It is an amenable number.

2011430121 is a deficient number, since it is larger than the sum of its proper divisors (698125623).

2011430121 is an equidigital number, since it uses as much as digits as its factorization.

2011430121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6912231.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2011430121 is about 44848.9701219549. The cubic root of 2011430121 is about 1262.3166669839.

Adding to 2011430121 its reverse (1210341102), we get a palindrome (3221771223).

The spelling of 2011430121 in words is "two billion, eleven million, four hundred thirty thousand, one hundred twenty-one".