31323416503 has 8 divisors (see below), whose sum is σ = 31509164448. Its totient is φ = 31137722784.

The previous prime is 31323416489. The next prime is 31323416533. The reversal of 31323416503 is 30561432313.

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 31323416503 - 2⁵ = 31323416471 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 (31323416533) 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, 2216526 + ... + 2230612.

It is an arithmetic number, because the mean of its divisors is an integer number (3938645556).

Almost surely, 2^31323416503 is an apocalyptic number.

31323416503 is a deficient number, since it is larger than the sum of its proper divisors (185747945).

31323416503 is a wasteful number, since it uses less digits than its factorization.

31323416503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27113.

The product of its (nonzero) digits is 19440, while the sum is 31.

Adding to 31323416503 its reverse (30561432313), we get a palindrome (61884848816).

The spelling of 31323416503 in words is "thirty-one billion, three hundred twenty-three million, four hundred sixteen thousand, five hundred three".