20111123041004 has 6 divisors (see below), whose sum is σ = 35194465321764. Its totient is φ = 10055561520500.

The previous prime is 20111123040881. The next prime is 20111123041033. The reversal of 20111123041004 is 40014032111102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2513890380122 + ... + 2513890380129.

It is an arithmetic number, because the mean of its divisors is an integer number (5865744220294).

Almost surely, 2^{20111123041004} is an apocalyptic number.

It is an amenable number.

20111123041004 is a deficient number, since it is larger than the sum of its proper divisors (15083342280760).

20111123041004 is a wasteful number, since it uses less digits than its factorization.

20111123041004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5027780760255 (or 5027780760253 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 20111123041004 its reverse (40014032111102), we get a palindrome (60125155152106).

The spelling of 20111123041004 in words is "twenty trillion, one hundred eleven billion, one hundred twenty-three million, forty-one thousand, four".