20111211034 has 8 divisors (see below), whose sum is σ = 30167716320. Its totient is φ = 10055305596.

The previous prime is 20111211031. The next prime is 20111211037. The reversal of 20111211034 is 43011211102.

It is an interprime number because it is at equal distance from previous prime (20111211031) and next prime (20111211037).

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

It is a junction number, because it is equal to n+sod(n) for n = 20111210999 and 20111211017.

It is not an unprimeable number, because it can be changed into a prime (20111211031) 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, 53814 + ... + 207649.

It is an arithmetic number, because the mean of its divisors is an integer number (3770964540).

Almost surely, 2^20111211034 is an apocalyptic number.

20111211034 is a deficient number, since it is larger than the sum of its proper divisors (10056505286).

20111211034 is a wasteful number, since it uses less digits than its factorization.

20111211034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299924.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20111211034 its reverse (43011211102), we get a palindrome (63122422136).

The spelling of 20111211034 in words is "twenty billion, one hundred eleven million, two hundred eleven thousand, thirty-four".