20120003011 has 4 divisors (see below), whose sum is σ = 20191098712. Its totient is φ = 20048907312.

The previous prime is 20120002927. The next prime is 20120003023. The reversal of 20120003011 is 11030002102.

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

It is a cyclic number.

It is not a de Polignac number, because 20120003011 - 2⁷ = 20120002883 is a prime.

It is a super-2 number, since 2×20120003011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20120003041) 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, 35547426 + ... + 35547991.

It is an arithmetic number, because the mean of its divisors is an integer number (5047774678).

Almost surely, 2^20120003011 is an apocalyptic number.

20120003011 is a deficient number, since it is larger than the sum of its proper divisors (71095701).

20120003011 is an equidigital number, since it uses as much as digits as its factorization.

20120003011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71095700.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20120003011 its reverse (11030002102), we get a palindrome (31150005113).

Subtracting from 20120003011 its reverse (11030002102), we obtain a palindrome (9090000909).

The spelling of 20120003011 in words is "twenty billion, one hundred twenty million, three thousand, eleven".