20112101024431 has 64 divisors (see below), whose sum is σ = 24573083222016. Its totient is φ = 16278220339200.

The previous prime is 20112101024417. The next prime is 20112101024437. The reversal of 20112101024431 is 13442010121102.

It is not a de Polignac number, because 20112101024431 - 2⁵ = 20112101024399 is a prime.

It is a super-2 number, since 2×20112101024431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112101024437) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19129846 + ... + 20153788.

It is an arithmetic number, because the mean of its divisors is an integer number (383954425344).

Almost surely, 2^{20112101024431} is an apocalyptic number.

20112101024431 is a deficient number, since it is larger than the sum of its proper divisors (4460982197585).

20112101024431 is a wasteful number, since it uses less digits than its factorization.

20112101024431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024112.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 20112101024431 its reverse (13442010121102), we get a palindrome (33554111145533).

The spelling of 20112101024431 in words is "twenty trillion, one hundred twelve billion, one hundred one million, twenty-four thousand, four hundred thirty-one".