10231242021 has 96 divisors (see below), whose sum is σ = 20527153920. Its totient is φ = 4736793600.

The previous prime is 10231242013. The next prime is 10231242103. The reversal of 10231242021 is 12024213201.

It is a happy number.

10231242021 is a `hidden beast` number, since 10 + 231 + 2 + 420 + 2 + 1 = 666.

It is not a de Polignac number, because 10231242021 - 2³ = 10231242013 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10231241985 and 10231242003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231242001) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 241681 + ... + 280841.

It is an arithmetic number, because the mean of its divisors is an integer number (213824520).

Almost surely, 2^10231242021 is an apocalyptic number.

10231242021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10231242021 is an abundant number, since it is smaller than the sum of its proper divisors (10295911899).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10231242021 is a wasteful number, since it uses less digits than its factorization.

10231242021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39227 (or 39224 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 10231242021 its reverse (12024213201), we get a palindrome (22255455222).

It can be divided in two parts, 10231 and 242021, that added together give a palindrome (252252).

The spelling of 10231242021 in words is "ten billion, two hundred thirty-one million, two hundred forty-two thousand, twenty-one".