31234044431 has 8 divisors (see below), whose sum is σ = 32096783904. Its totient is φ = 30372282720.

The previous prime is 31234044419. The next prime is 31234044481. The reversal of 31234044431 is 13444043213.

It is a happy number.

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 31234044431 - 2³⁰ = 30160302607 is a prime.

It is a super-2 number, since 2×31234044431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31234044394 and 31234044403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31234044481) 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, 179435 + ... + 307676.

It is an arithmetic number, because the mean of its divisors is an integer number (4012097988).

Almost surely, 2^31234044431 is an apocalyptic number.

31234044431 is a deficient number, since it is larger than the sum of its proper divisors (862739473).

31234044431 is a wasteful number, since it uses less digits than its factorization.

31234044431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488881.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 31234044431 its reverse (13444043213), we get a palindrome (44678087644).

The spelling of 31234044431 in words is "thirty-one billion, two hundred thirty-four million, forty-four thousand, four hundred thirty-one".