31323211201301 has 4 divisors (see below), whose sum is σ = 31407187639212. Its totient is φ = 31239234763392.

The previous prime is 31323211201283. The next prime is 31323211201361. The reversal of 31323211201301 is 10310211232313.

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 14184066598276 + 17139144603025 = 3766174^2 + 4139945^2 .

It is a cyclic number.

It is not a de Polignac number, because 31323211201301 - 2²² = 31323207006997 is a prime.

It is a super-2 number, since 2×31323211201301² (a number of 28 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 (31323211201361) 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, 41988218396 + ... + 41988219141.

It is an arithmetic number, because the mean of its divisors is an integer number (7851796909803).

Almost surely, 2^{31323211201301} is an apocalyptic number.

It is an amenable number.

31323211201301 is a deficient number, since it is larger than the sum of its proper divisors (83976437911).

31323211201301 is an equidigital number, since it uses as much as digits as its factorization.

31323211201301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83976437910.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 31323211201301 its reverse (10310211232313), we get a palindrome (41633422433614).

The spelling of 31323211201301 in words is "thirty-one trillion, three hundred twenty-three billion, two hundred eleven million, two hundred one thousand, three hundred one".