213331525487 has 2 divisors, whose sum is σ = 213331525488. Its totient is φ = 213331525486.

The previous prime is 213331525439. The next prime is 213331525489. The reversal of 213331525487 is 784525133312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213331525487 - 2²² = 213327331183 is a prime.

It is a super-2 number, since 2×213331525487² (a number of 23 digits) contains 22 as substring.

Together with 213331525489, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213331525489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106665762743 + 106665762744.

It is an arithmetic number, because the mean of its divisors is an integer number (106665762744).

Almost surely, 2^213331525487 is an apocalyptic number.

213331525487 is a deficient number, since it is larger than the sum of its proper divisors (1).

213331525487 is an equidigital number, since it uses as much as digits as its factorization.

213331525487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 44.

Adding to 213331525487 its reverse (784525133312), we get a palindrome (997856658799).

The spelling of 213331525487 in words is "two hundred thirteen billion, three hundred thirty-one million, five hundred twenty-five thousand, four hundred eighty-seven".