20121120034 has 16 divisors (see below), whose sum is σ = 30281382648. Its totient is φ = 10027366272.

The previous prime is 20121120007. The next prime is 20121120077. The reversal of 20121120034 is 43002112102.

It can be written as a sum of positive squares in 4 ways, for example, as 19627169409 + 493950625 = 140097^2 + 22225^2 .

It is a super-2 number, since 2×20121120034² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1080934 + ... + 1099390.

Almost surely, 2^20121120034 is an apocalyptic number.

20121120034 is a deficient number, since it is larger than the sum of its proper divisors (10160262614).

20121120034 is a wasteful number, since it uses less digits than its factorization.

20121120034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20229.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20121120034 its reverse (43002112102), we get a palindrome (63123232136).

The spelling of 20121120034 in words is "twenty billion, one hundred twenty-one million, one hundred twenty thousand, thirty-four".