1031313121303 has 8 divisors (see below), whose sum is σ = 1041700590576. Its totient is φ = 1020929112000.

The previous prime is 1031313121273. The next prime is 1031313121313. The reversal of 1031313121303 is 3031213131301.

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 1031313121303 - 2¹⁷ = 1031312990231 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 (1031313121313) 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, 263758 + ... + 1460203.

It is an arithmetic number, because the mean of its divisors is an integer number (130212573822).

Almost surely, 2^{1031313121303} is an apocalyptic number.

1031313121303 is a deficient number, since it is larger than the sum of its proper divisors (10387469273).

1031313121303 is a wasteful number, since it uses less digits than its factorization.

1031313121303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729985.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 1031313121303 its reverse (3031213131301), we get a palindrome (4062526252604).

The spelling of 1031313121303 in words is "one trillion, thirty-one billion, three hundred thirteen million, one hundred twenty-one thousand, three hundred three".