323220131029 has 4 divisors (see below), whose sum is σ = 331955810284. Its totient is φ = 314484451776.

The previous prime is 323220130969. The next prime is 323220131033. The reversal of 323220131029 is 920131022323.

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

It can be written as a sum of positive squares in 2 ways, for example, as 220804130404 + 102416000625 = 469898^2 + 320025^2 .

It is a cyclic number.

It is not a de Polignac number, because 323220131029 - 2⁹ = 323220130517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 323220130988 and 323220131006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323224131029) 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, 4367839572 + ... + 4367839645.

It is an arithmetic number, because the mean of its divisors is an integer number (82988952571).

Almost surely, 2^323220131029 is an apocalyptic number.

It is an amenable number.

323220131029 is a deficient number, since it is larger than the sum of its proper divisors (8735679255).

323220131029 is an equidigital number, since it uses as much as digits as its factorization.

323220131029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8735679254.

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 323220131029 in words is "three hundred twenty-three billion, two hundred twenty million, one hundred thirty-one thousand, twenty-nine".