53103232021 has 24 divisors (see below), whose sum is σ = 63344234520. Its totient is φ = 44361676800.

The previous prime is 53103231989. The next prime is 53103232043. The reversal of 53103232021 is 12023230135.

It can be written as a sum of positive squares in 4 ways, for example, as 9583431025 + 43519800996 = 97895^2 + 208614^2 .

It is not a de Polignac number, because 53103232021 - 2⁵ = 53103231989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53103231983 and 53103232001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53103232621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2038245 + ... + 2064133.

It is an arithmetic number, because the mean of its divisors is an integer number (2639343105).

Almost surely, 2^53103232021 is an apocalyptic number.

It is an amenable number.

53103232021 is a deficient number, since it is larger than the sum of its proper divisors (10241002499).

53103232021 is a wasteful number, since it uses less digits than its factorization.

53103232021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26965 (or 26958 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

Adding to 53103232021 its reverse (12023230135), we get a palindrome (65126462156).

The spelling of 53103232021 in words is "fifty-three billion, one hundred three million, two hundred thirty-two thousand, twenty-one".