31311321300321 has 8 divisors (see below), whose sum is σ = 43095151897344. Its totient is φ = 20200852451760.

The previous prime is 31311321300313. The next prime is 31311321300331. The reversal of 31311321300321 is 12300312311313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31311321300321 - 2³ = 31311321300313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31311321300291 and 31311321300300.

It is not an unprimeable number, because it can be changed into a prime (31311321300331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168340437006 + ... + 168340437191.

It is an arithmetic number, because the mean of its divisors is an integer number (5386893987168).

Almost surely, 2^{31311321300321} is an apocalyptic number.

31311321300321 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

31311321300321 is a deficient number, since it is larger than the sum of its proper divisors (11783830597023).

31311321300321 is a wasteful number, since it uses less digits than its factorization.

31311321300321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336680874231.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 31311321300321 its reverse (12300312311313), we get a palindrome (43611633611634).

The spelling of 31311321300321 in words is "thirty-one trillion, three hundred eleven billion, three hundred twenty-one million, three hundred thousand, three hundred twenty-one".