31023123133303 has 4 divisors (see below), whose sum is σ = 35454997866640. Its totient is φ = 26591248399968.

The previous prime is 31023123133273. The next prime is 31023123133313. The reversal of 31023123133303 is 30333132132013.

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

It is not a de Polignac number, because 31023123133303 - 2²⁹ = 31022586262391 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 (31023123133313) 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, 2215937366658 + ... + 2215937366671.

It is an arithmetic number, because the mean of its divisors is an integer number (8863749466660).

Almost surely, 2^{31023123133303} is an apocalyptic number.

31023123133303 is a deficient number, since it is larger than the sum of its proper divisors (4431874733337).

31023123133303 is an equidigital number, since it uses as much as digits as its factorization.

31023123133303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4431874733336.

The product of its (nonzero) digits is 8748, while the sum is 28.

Adding to 31023123133303 its reverse (30333132132013), we get a palindrome (61356255265316).

The spelling of 31023123133303 in words is "thirty-one trillion, twenty-three billion, one hundred twenty-three million, one hundred thirty-three thousand, three hundred three".