31344013403 has 4 divisors (see below), whose sum is σ = 31572801960. Its totient is φ = 31115224848.

The previous prime is 31344013333. The next prime is 31344013411. The reversal of 31344013403 is 30431044313.

It is a happy number.

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 31344013403 - 2¹⁰ = 31344012379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31344013703) 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, 114394073 + ... + 114394346.

It is an arithmetic number, because the mean of its divisors is an integer number (7893200490).

Almost surely, 2^31344013403 is an apocalyptic number.

31344013403 is a deficient number, since it is larger than the sum of its proper divisors (228788557).

31344013403 is a wasteful number, since it uses less digits than its factorization.

31344013403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228788556.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 31344013403 its reverse (30431044313), we get a palindrome (61775057716).

The spelling of 31344013403 in words is "thirty-one billion, three hundred forty-four million, thirteen thousand, four hundred three".