31321113032203 has 8 divisors (see below), whose sum is σ = 33175050612480. Its totient is φ = 29468455359360.

The previous prime is 31321113032141. The next prime is 31321113032207. The reversal of 31321113032203 is 30223031112313.

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

It is a cyclic number.

It is not a de Polignac number, because 31321113032203 - 2¹³ = 31321113024011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31321113032207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319926468 + ... + 320024353.

It is an arithmetic number, because the mean of its divisors is an integer number (4146881326560).

Almost surely, 2^{31321113032203} is an apocalyptic number.

31321113032203 is a deficient number, since it is larger than the sum of its proper divisors (1853937580277).

31321113032203 is a wasteful number, since it uses less digits than its factorization.

31321113032203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639953717.

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

Adding to 31321113032203 its reverse (30223031112313), we get a palindrome (61544144144516).

The spelling of 31321113032203 in words is "thirty-one trillion, three hundred twenty-one billion, one hundred thirteen million, thirty-two thousand, two hundred three".