31122423303 has 4 divisors (see below), whose sum is σ = 41496564408. Its totient is φ = 20748282200.

The previous prime is 31122423281. The next prime is 31122423317. The reversal of 31122423303 is 30332422113.

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

It is a cyclic number.

It is not a de Polignac number, because 31122423303 - 2²⁴ = 31105646087 is a prime.

It is a super-2 number, since 2×31122423303² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31122423323) 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, 5187070548 + ... + 5187070553.

It is an arithmetic number, because the mean of its divisors is an integer number (10374141102).

Almost surely, 2^31122423303 is an apocalyptic number.

31122423303 is a deficient number, since it is larger than the sum of its proper divisors (10374141105).

31122423303 is a wasteful number, since it uses less digits than its factorization.

31122423303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10374141104.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 31122423303 its reverse (30332422113), we get a palindrome (61454845416).

The spelling of 31122423303 in words is "thirty-one billion, one hundred twenty-two million, four hundred twenty-three thousand, three hundred three".