213138880267 has 2 divisors, whose sum is σ = 213138880268. Its totient is φ = 213138880266.

The previous prime is 213138880259. The next prime is 213138880391. The reversal of 213138880267 is 762088831312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213138880267 - 2³ = 213138880259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213138880267.

It is not a weakly prime, because it can be changed into another prime (213138880237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106569440133 + 106569440134.

It is an arithmetic number, because the mean of its divisors is an integer number (106569440134).

Almost surely, 2^213138880267 is an apocalyptic number.

213138880267 is a deficient number, since it is larger than the sum of its proper divisors (1).

213138880267 is an equidigital number, since it uses as much as digits as its factorization.

213138880267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 213138880267 in words is "two hundred thirteen billion, one hundred thirty-eight million, eight hundred eighty thousand, two hundred sixty-seven".