31322013403 has 8 divisors (see below), whose sum is σ = 31379581440. Its totient is φ = 31264474920.

The previous prime is 31322013391. The next prime is 31322013407. The reversal of 31322013403 is 30431022313.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31322013403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31322013407) 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, 3773688 + ... + 3781978.

It is an arithmetic number, because the mean of its divisors is an integer number (3922447680).

Almost surely, 2^31322013403 is an apocalyptic number.

31322013403 is a deficient number, since it is larger than the sum of its proper divisors (57568037).

31322013403 is an equidigital number, since it uses as much as digits as its factorization.

31322013403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14777.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 31322013403 its reverse (30431022313), we get a palindrome (61753035716).

It can be divided in two parts, 313220 and 13403, that added together give a palindrome (326623).

The spelling of 31322013403 in words is "thirty-one billion, three hundred twenty-two million, thirteen thousand, four hundred three".