213325251245 has 4 divisors (see below), whose sum is σ = 255990301500. Its totient is φ = 170660200992.

The previous prime is 213325251241. The next prime is 213325251329. The reversal of 213325251245 is 542152523312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54286204036 + 159039047209 = 232994^2 + 398797^2 .

It is a cyclic number.

It is not a de Polignac number, because 213325251245 - 2² = 213325251241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213325251241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21332525120 + ... + 21332525129.

It is an arithmetic number, because the mean of its divisors is an integer number (63997575375).

Almost surely, 2^213325251245 is an apocalyptic number.

It is an amenable number.

213325251245 is a deficient number, since it is larger than the sum of its proper divisors (42665050255).

213325251245 is an equidigital number, since it uses as much as digits as its factorization.

213325251245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42665050254.

The product of its digits is 72000, while the sum is 35.

Adding to 213325251245 its reverse (542152523312), we get a palindrome (755477774557).

The spelling of 213325251245 in words is "two hundred thirteen billion, three hundred twenty-five million, two hundred fifty-one thousand, two hundred forty-five".