20011055434 has 8 divisors (see below), whose sum is σ = 30035597760. Its totient is φ = 9999189516.

The previous prime is 20011055381. The next prime is 20011055459. The reversal of 20011055434 is 43455011002.

It is a happy number.

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 = 20011055399 and 20011055408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3165154 + ... + 3171469.

It is an arithmetic number, because the mean of its divisors is an integer number (3754449720).

Almost surely, 2^20011055434 is an apocalyptic number.

20011055434 is a deficient number, since it is larger than the sum of its proper divisors (10024542326).

20011055434 is a wasteful number, since it uses less digits than its factorization.

20011055434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6338204.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 20011055434 its reverse (43455011002), we get a palindrome (63466066436).

The spelling of 20011055434 in words is "twenty billion, eleven million, fifty-five thousand, four hundred thirty-four".