31344433013 has 8 divisors (see below), whose sum is σ = 31411012800. Its totient is φ = 31277894688.

The previous prime is 31344433007. The next prime is 31344433037. The reversal of 31344433013 is 31033444313.

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 31344433013 - 2¹⁶ = 31344367477 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 (31344433063) 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, 1845920 + ... + 1862822.

It is an arithmetic number, because the mean of its divisors is an integer number (3926376600).

Almost surely, 2^31344433013 is an apocalyptic number.

It is an amenable number.

31344433013 is a deficient number, since it is larger than the sum of its proper divisors (66579787).

31344433013 is a wasteful number, since it uses less digits than its factorization.

31344433013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20731.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 31344433013 its reverse (31033444313), we get a palindrome (62377877326).

The spelling of 31344433013 in words is "thirty-one billion, three hundred forty-four million, four hundred thirty-three thousand, thirteen".