213012440093 has 2 divisors, whose sum is σ = 213012440094. Its totient is φ = 213012440092.

The previous prime is 213012440087. The next prime is 213012440107. The reversal of 213012440093 is 390044210312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191898315844 + 21114124249 = 438062^2 + 145307^2 .

It is a cyclic number.

It is not a de Polignac number, because 213012440093 - 2¹⁶ = 213012374557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213012040093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106506220046 + 106506220047.

It is an arithmetic number, because the mean of its divisors is an integer number (106506220047).

Almost surely, 2^213012440093 is an apocalyptic number.

It is an amenable number.

213012440093 is a deficient number, since it is larger than the sum of its proper divisors (1).

213012440093 is an equidigital number, since it uses as much as digits as its factorization.

213012440093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 213012440093 in words is "two hundred thirteen billion, twelve million, four hundred forty thousand, ninety-three".