213320301031 has 4 divisors (see below), whose sum is σ = 222595096752. Its totient is φ = 204045505312.

The previous prime is 213320300969. The next prime is 213320301037. The reversal of 213320301031 is 130103023312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213320301031 - 2²⁵ = 213286746599 is a prime.

It is a super-2 number, since 2×213320301031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213320301037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4637397826 + ... + 4637397871.

It is an arithmetic number, because the mean of its divisors is an integer number (55648774188).

Almost surely, 2^213320301031 is an apocalyptic number.

213320301031 is a deficient number, since it is larger than the sum of its proper divisors (9274795721).

213320301031 is an equidigital number, since it uses as much as digits as its factorization.

213320301031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9274795720.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 213320301031 its reverse (130103023312), we get a palindrome (343423324343).

The spelling of 213320301031 in words is "two hundred thirteen billion, three hundred twenty million, three hundred one thousand, thirty-one".