31124412303321 has 4 divisors (see below), whose sum is σ = 41499216404432. Its totient is φ = 20749608202212.

The previous prime is 31124412303301. The next prime is 31124412303329. The reversal of 31124412303321 is 12330321442113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 31124412303321 - 2¹⁰ = 31124412302297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31124412303329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5187402050551 + ... + 5187402050556.

It is an arithmetic number, because the mean of its divisors is an integer number (10374804101108).

Almost surely, 2^{31124412303321} is an apocalyptic number.

It is an amenable number.

31124412303321 is a deficient number, since it is larger than the sum of its proper divisors (10374804101111).

31124412303321 is a wasteful number, since it uses less digits than its factorization.

31124412303321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10374804101110.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 31124412303321 its reverse (12330321442113), we get a palindrome (43454733745434).

The spelling of 31124412303321 in words is "thirty-one trillion, one hundred twenty-four billion, four hundred twelve million, three hundred three thousand, three hundred twenty-one".