20154034011 has 8 divisors (see below), whose sum is σ = 26872938304. Its totient is φ = 13435576200.

The previous prime is 20154034003. The next prime is 20154034013. The reversal of 20154034011 is 11043045102.

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

It is not a de Polignac number, because 20154034011 - 2³ = 20154034003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20154034013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13860 + ... + 201246.

It is an arithmetic number, because the mean of its divisors is an integer number (3359117288).

Almost surely, 2^20154034011 is an apocalyptic number.

20154034011 is a deficient number, since it is larger than the sum of its proper divisors (6718904293).

20154034011 is a wasteful number, since it uses less digits than its factorization.

20154034011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223241.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 20154034011 its reverse (11043045102), we get a palindrome (31197079113).

The spelling of 20154034011 in words is "twenty billion, one hundred fifty-four million, thirty-four thousand, eleven".