20111121300010 has 32 divisors (see below), whose sum is σ = 39223804717440. Its totient is φ = 7380088676928.

The previous prime is 20111121300001. The next prime is 20111121300043. The reversal of 20111121300010 is 1000312111102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 474521550 + ... + 474563929.

It is an arithmetic number, because the mean of its divisors is an integer number (1225743897420).

Almost surely, 2^{20111121300010} is an apocalyptic number.

20111121300010 is a deficient number, since it is larger than the sum of its proper divisors (19112683417430).

20111121300010 is a wasteful number, since it uses less digits than its factorization.

20111121300010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949085662.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 20111121300010 its reverse (1000312111102), we get a palindrome (21111433411112).

The spelling of 20111121300010 in words is "twenty trillion, one hundred eleven billion, one hundred twenty-one million, three hundred thousand, ten".