31203212314045 has 4 divisors (see below), whose sum is σ = 37443854776860. Its totient is φ = 24962569851232.

The previous prime is 31203212314033. The next prime is 31203212314067. The reversal of 31203212314045 is 54041321230213.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24610945527364 + 6592266786681 = 4960942^2 + 2567541^2 .

It is a cyclic number.

It is not a de Polignac number, because 31203212314045 - 2²⁷ = 31203078096317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31203212313998 and 31203212314016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3120321231400 + ... + 3120321231409.

It is an arithmetic number, because the mean of its divisors is an integer number (9360963694215).

Almost surely, 2^{31203212314045} is an apocalyptic number.

It is an amenable number.

31203212314045 is a deficient number, since it is larger than the sum of its proper divisors (6240642462815).

31203212314045 is an equidigital number, since it uses as much as digits as its factorization.

31203212314045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6240642462814.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 31203212314045 its reverse (54041321230213), we get a palindrome (85244533544258).

The spelling of 31203212314045 in words is "thirty-one trillion, two hundred three billion, two hundred twelve million, three hundred fourteen thousand, forty-five".