31344442001 has 4 divisors (see below), whose sum is σ = 31373173104. Its totient is φ = 31315710900.

The previous prime is 31344441991. The next prime is 31344442007. The reversal of 31344442001 is 10024444313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31344442001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31344442007) 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, 14363915 + ... + 14366096.

It is an arithmetic number, because the mean of its divisors is an integer number (7843293276).

Almost surely, 2^31344442001 is an apocalyptic number.

It is an amenable number.

31344442001 is a deficient number, since it is larger than the sum of its proper divisors (28731103).

31344442001 is a wasteful number, since it uses less digits than its factorization.

31344442001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28731102.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 31344442001 its reverse (10024444313), we get a palindrome (41368886314).

The spelling of 31344442001 in words is "thirty-one billion, three hundred forty-four million, four hundred forty-two thousand, one".