20211124031 has 6 divisors (see below), whose sum is σ = 23510899440. Its totient is φ = 17323820556.

The previous prime is 20211123899. The next prime is 20211124057. The reversal of 20211124031 is 13042111202.

It is not a de Polignac number, because 20211124031 - 2¹⁰ = 20211123007 is a prime.

It is a super-2 number, since 2×20211124031² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211324031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 206235911 + ... + 206236008.

It is an arithmetic number, because the mean of its divisors is an integer number (3918483240).

Almost surely, 2^20211124031 is an apocalyptic number.

20211124031 is a deficient number, since it is larger than the sum of its proper divisors (3299775409).

20211124031 is an equidigital number, since it uses as much as digits as its factorization.

20211124031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412471933 (or 412471926 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20211124031 its reverse (13042111202), we get a palindrome (33253235233).

The spelling of 20211124031 in words is "twenty billion, two hundred eleven million, one hundred twenty-four thousand, thirty-one".