20111121302 has 16 divisors (see below), whose sum is σ = 30311629920. Its totient is φ = 10007331648.

The previous prime is 20111121301. The next prime is 20111121323. The reversal of 20111121302 is 20312111102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111121301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453599 + ... + 495957.

It is an arithmetic number, because the mean of its divisors is an integer number (1894476870).

Almost surely, 2^20111121302 is an apocalyptic number.

20111121302 is a deficient number, since it is larger than the sum of its proper divisors (10200508618).

20111121302 is a wasteful number, since it uses less digits than its factorization.

20111121302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43495.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 20111121302 its reverse (20312111102), we get a palindrome (40423232404).

The spelling of 20111121302 in words is "twenty billion, one hundred eleven million, one hundred twenty-one thousand, three hundred two".