213113918053 has 2 divisors, whose sum is σ = 213113918054. Its totient is φ = 213113918052.

The previous prime is 213113918033. The next prime is 213113918063. The reversal of 213113918053 is 350819311312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205174573444 + 7939344609 = 452962^2 + 89103^2 .

It is a cyclic number.

It is not a de Polignac number, because 213113918053 - 2¹³ = 213113909861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213113918033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106556959026 + 106556959027.

It is an arithmetic number, because the mean of its divisors is an integer number (106556959027).

Almost surely, 2^213113918053 is an apocalyptic number.

It is an amenable number.

213113918053 is a deficient number, since it is larger than the sum of its proper divisors (1).

213113918053 is an equidigital number, since it uses as much as digits as its factorization.

213113918053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 213113918053 in words is "two hundred thirteen billion, one hundred thirteen million, nine hundred eighteen thousand, fifty-three".