31344441421 has 8 divisors (see below), whose sum is σ = 31878957600. Its totient is φ = 30810033840.

The previous prime is 31344441413. The next prime is 31344441433. The reversal of 31344441421 is 12414444313.

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 31344441421 - 2³ = 31344441413 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 (31344444421) 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, 736206 + ... + 777616.

It is an arithmetic number, because the mean of its divisors is an integer number (3984869700).

Almost surely, 2^31344441421 is an apocalyptic number.

It is an amenable number.

31344441421 is a deficient number, since it is larger than the sum of its proper divisors (534516179).

31344441421 is a wasteful number, since it uses less digits than its factorization.

31344441421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54299.

The product of its digits is 18432, while the sum is 31.

Adding to 31344441421 its reverse (12414444313), we get a palindrome (43758885734).

The spelling of 31344441421 in words is "thirty-one billion, three hundred forty-four million, four hundred forty-one thousand, four hundred twenty-one".