10521252112045 has 8 divisors (see below), whose sum is σ = 12625531989624. Its totient is φ = 8416982052864.

The previous prime is 10521252111949. The next prime is 10521252112087. The reversal of 10521252112045 is 54021125212501.

It can be written as a sum of positive squares in 4 ways, for example, as 409399064649 + 10111853047396 = 639843^2 + 3179914^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10521252112045 - 2²¹ = 10521250014893 is a prime.

It is a super-2 number, since 2×10521252112045² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10521252111998 and 10521252112016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155137 + ... + 4589833.

It is an arithmetic number, because the mean of its divisors is an integer number (1578191498703).

Almost surely, 2^{10521252112045} is an apocalyptic number.

It is an amenable number.

10521252112045 is a deficient number, since it is larger than the sum of its proper divisors (2104279877579).

10521252112045 is an equidigital number, since it uses as much as digits as its factorization.

10521252112045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4909199.

The product of its (nonzero) digits is 8000, while the sum is 31.

Adding to 10521252112045 its reverse (54021125212501), we get a palindrome (64542377324546).

The spelling of 10521252112045 in words is "ten trillion, five hundred twenty-one billion, two hundred fifty-two million, one hundred twelve thousand, forty-five".