23021355325 has 12 divisors (see below), whose sum is σ = 28579816980. Its totient is φ = 18395576960.

The previous prime is 23021355323. The next prime is 23021355449. The reversal of 23021355325 is 52355312032.

It can be written as a sum of positive squares in 6 ways, for example, as 1052483364 + 21968871961 = 32442^2 + 148219^2 .

It is not a de Polignac number, because 23021355325 - 2¹ = 23021355323 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23021355323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 515830 + ... + 558679.

It is an arithmetic number, because the mean of its divisors is an integer number (2381651415).

Almost surely, 2^23021355325 is an apocalyptic number.

23021355325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23021355325 is a deficient number, since it is larger than the sum of its proper divisors (5558461655).

23021355325 is a wasteful number, since it uses less digits than its factorization.

23021355325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075376 (or 1075371 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 31.

Adding to 23021355325 its reverse (52355312032), we get a palindrome (75376667357).

The spelling of 23021355325 in words is "twenty-three billion, twenty-one million, three hundred fifty-five thousand, three hundred twenty-five".