31023312213301 has 4 divisors (see below), whose sum is σ = 31023323473932. Its totient is φ = 31023300952672.

The previous prime is 31023312213287. The next prime is 31023312213337. The reversal of 31023312213301 is 10331221332013.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 27895192928100 + 3128119285201 = 5281590^2 + 1768649^2 .

It is a cyclic number.

It is not a de Polignac number, because 31023312213301 - 2¹⁷ = 31023312082229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31023312217301) 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, 1580835 + ... + 8034031.

It is an arithmetic number, because the mean of its divisors is an integer number (7755830868483).

Almost surely, 2^{31023312213301} is an apocalyptic number.

It is an amenable number.

31023312213301 is a deficient number, since it is larger than the sum of its proper divisors (11260631).

31023312213301 is an equidigital number, since it uses as much as digits as its factorization.

31023312213301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11260630.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31023312213301 its reverse (10331221332013), we get a palindrome (41354533545314).

The spelling of 31023312213301 in words is "thirty-one trillion, twenty-three billion, three hundred twelve million, two hundred thirteen thousand, three hundred one".