213253521351 has 16 divisors (see below), whose sum is σ = 307194800640. Its totient is φ = 130810957920.

The previous prime is 213253521347. The next prime is 213253521361. The reversal of 213253521351 is 153125352312.

It is not a de Polignac number, because 213253521351 - 2² = 213253521347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213253521361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8778931 + ... + 8803188.

It is an arithmetic number, because the mean of its divisors is an integer number (19199675040).

Almost surely, 2^213253521351 is an apocalyptic number.

213253521351 is a deficient number, since it is larger than the sum of its proper divisors (93941279289).

213253521351 is a wasteful number, since it uses less digits than its factorization.

213253521351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17582446.

The product of its digits is 27000, while the sum is 33.

Adding to 213253521351 its reverse (153125352312), we get a palindrome (366378873663).

The spelling of 213253521351 in words is "two hundred thirteen billion, two hundred fifty-three million, five hundred twenty-one thousand, three hundred fifty-one".