20121011034 has 16 divisors (see below), whose sum is σ = 40340418240. Its totient is φ = 6690604320.

The previous prime is 20121011021. The next prime is 20121011083. The reversal of 20121011034 is 43011012102.

It is a Curzon number.

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, 4097182 + ... + 4102089.

It is an arithmetic number, because the mean of its divisors is an integer number (2521276140).

Almost surely, 2^20121011034 is an apocalyptic number.

20121011034 is an abundant number, since it is smaller than the sum of its proper divisors (20219407206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20121011034 is a wasteful number, since it uses less digits than its factorization.

20121011034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8199685.

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

Adding to 20121011034 its reverse (43011012102), we get a palindrome (63132023136).

The spelling of 20121011034 in words is "twenty billion, one hundred twenty-one million, eleven thousand, thirty-four".