213231004099 has 2 divisors, whose sum is σ = 213231004100. Its totient is φ = 213231004098.

The previous prime is 213231004087. The next prime is 213231004117. The reversal of 213231004099 is 990400132312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213231004099 - 2⁵ = 213231004067 is a prime.

It is a super-2 number, since 2×213231004099² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (213231004009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106615502049 + 106615502050.

It is an arithmetic number, because the mean of its divisors is an integer number (106615502050).

Almost surely, 2^213231004099 is an apocalyptic number.

213231004099 is a deficient number, since it is larger than the sum of its proper divisors (1).

213231004099 is an equidigital number, since it uses as much as digits as its factorization.

213231004099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 34.

The spelling of 213231004099 in words is "two hundred thirteen billion, two hundred thirty-one million, four thousand, ninety-nine".