210131451253 has 4 divisors (see below), whose sum is σ = 210132816300. Its totient is φ = 210130086208.

The previous prime is 210131451247. The next prime is 210131451287. The reversal of 210131451253 is 352154131012.

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 144698834449 + 65432616804 = 380393^2 + 255798^2 .

It is a cyclic number.

It is not a de Polignac number, because 210131451253 - 2¹³ = 210131443061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210131451203) 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, 417250 + ... + 770947.

It is an arithmetic number, because the mean of its divisors is an integer number (52533204075).

Almost surely, 2^210131451253 is an apocalyptic number.

It is an amenable number.

210131451253 is a deficient number, since it is larger than the sum of its proper divisors (1365047).

210131451253 is a wasteful number, since it uses less digits than its factorization.

210131451253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365046.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 210131451253 its reverse (352154131012), we get a palindrome (562285582265).

The spelling of 210131451253 in words is "two hundred ten billion, one hundred thirty-one million, four hundred fifty-one thousand, two hundred fifty-three".