21032413201025 has 24 divisors (see below), whose sum is σ = 26572701419064. Its totient is φ = 16508193062400.

The previous prime is 21032413201003. The next prime is 21032413201097. The reversal of 21032413201025 is 52010231423012.

It can be written as a sum of positive squares in 12 ways, for example, as 7677072187009 + 13355341014016 = 2770753^2 + 3654496^2 .

It is not a de Polignac number, because 21032413201025 - 2¹⁴ = 21032413184641 is a prime.

It is a super-2 number, since 2×21032413201025² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21032413200985 and 21032413201003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137141687 + ... + 137294963.

It is an arithmetic number, because the mean of its divisors is an integer number (1107195892461).

Almost surely, 2^{21032413201025} is an apocalyptic number.

21032413201025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21032413201025 is a deficient number, since it is larger than the sum of its proper divisors (5540288218039).

21032413201025 is a wasteful number, since it uses less digits than its factorization.

21032413201025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256901 (or 256896 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 21032413201025 its reverse (52010231423012), we get a palindrome (73042644624037).

The spelling of 21032413201025 in words is "twenty-one trillion, thirty-two billion, four hundred thirteen million, two hundred one thousand, twenty-five".