20113233131121 has 32 divisors (see below), whose sum is σ = 28949053916160. Its totient is φ = 12348027988800.

The previous prime is 20113233131111. The next prime is 20113233131137. The reversal of 20113233131121 is 12113133231102.

It is not a de Polignac number, because 20113233131121 - 2⁷ = 20113233130993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20113233131091 and 20113233131100.

It is not an unprimeable number, because it can be changed into a prime (20113233131111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57483220 + ... + 57832058.

It is an arithmetic number, because the mean of its divisors is an integer number (904657934880).

Almost surely, 2^{20113233131121} is an apocalyptic number.

It is an amenable number.

20113233131121 is a deficient number, since it is larger than the sum of its proper divisors (8835820785039).

20113233131121 is a wasteful number, since it uses less digits than its factorization.

20113233131121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352357.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 20113233131121 its reverse (12113133231102), we get a palindrome (32226366362223).

The spelling of 20113233131121 in words is "twenty trillion, one hundred thirteen billion, two hundred thirty-three million, one hundred thirty-one thousand, one hundred twenty-one".