1031312203213 has 8 divisors (see below), whose sum is σ = 1043103742560. Its totient is φ = 1019551654800.

The previous prime is 1031312203177. The next prime is 1031312203241. The reversal of 1031312203213 is 3123022131301.

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 1031312203213 - 2²¹ = 1031310106061 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 (1031312293213) 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, 7680795 + ... + 7813912.

It is an arithmetic number, because the mean of its divisors is an integer number (130387967820).

Almost surely, 2^{1031312203213} is an apocalyptic number.

It is an amenable number.

1031312203213 is a deficient number, since it is larger than the sum of its proper divisors (11791539347).

1031312203213 is a wasteful number, since it uses less digits than its factorization.

1031312203213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15495467.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1031312203213 its reverse (3123022131301), we get a palindrome (4154334334514).

The spelling of 1031312203213 in words is "one trillion, thirty-one billion, three hundred twelve million, two hundred three thousand, two hundred thirteen".