213030031001 has 2 divisors, whose sum is σ = 213030031002. Its totient is φ = 213030031000.

The previous prime is 213030030953. The next prime is 213030031057. The reversal of 213030031001 is 100130030312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208575803401 + 4454227600 = 456701^2 + 66740^2 .

It is a cyclic number.

It is not a de Polignac number, because 213030031001 - 2²² = 213025836697 is a prime.

It is not a weakly prime, because it can be changed into another prime (213030061001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106515015500 + 106515015501.

It is an arithmetic number, because the mean of its divisors is an integer number (106515015501).

Almost surely, 2^213030031001 is an apocalyptic number.

It is an amenable number.

213030031001 is a deficient number, since it is larger than the sum of its proper divisors (1).

213030031001 is an equidigital number, since it uses as much as digits as its factorization.

213030031001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 213030031001 its reverse (100130030312), we get a palindrome (313160061313).

The spelling of 213030031001 in words is "two hundred thirteen billion, thirty million, thirty-one thousand, one".