120121030011 has 4 divisors (see below), whose sum is σ = 160161373352. Its totient is φ = 80080686672.

The previous prime is 120121029983. The next prime is 120121030013. The reversal of 120121030011 is 110030121021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 120121030011 - 2¹⁷ = 120120898939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120121030013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20020171666 + ... + 20020171671.

It is an arithmetic number, because the mean of its divisors is an integer number (40040343338).

Almost surely, 2^120121030011 is an apocalyptic number.

120121030011 is a deficient number, since it is larger than the sum of its proper divisors (40040343341).

120121030011 is an equidigital number, since it uses as much as digits as its factorization.

120121030011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40040343340.

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

Adding to 120121030011 its reverse (110030121021), we get a palindrome (230151151032).

The spelling of 120121030011 in words is "one hundred twenty billion, one hundred twenty-one million, thirty thousand, eleven".