20112023231 has 2 divisors, whose sum is σ = 20112023232. Its totient is φ = 20112023230.

The previous prime is 20112023209. The next prime is 20112023251. The reversal of 20112023231 is 13232021102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20112023231 - 2¹⁴ = 20112006847 is a prime.

It is a super-2 number, since 2×20112023231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20112023201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056011615 + 10056011616.

It is an arithmetic number, because the mean of its divisors is an integer number (10056011616).

Almost surely, 2^20112023231 is an apocalyptic number.

20112023231 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112023231 is an equidigital number, since it uses as much as digits as its factorization.

20112023231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20112023231 its reverse (13232021102), we get a palindrome (33344044333).

The spelling of 20112023231 in words is "twenty billion, one hundred twelve million, twenty-three thousand, two hundred thirty-one".