31234421003 has 8 divisors (see below), whose sum is σ = 31910975040. Its totient is φ = 30558366720.

The previous prime is 31234420999. The next prime is 31234421051. The reversal of 31234421003 is 30012443213.

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 31234421003 - 2² = 31234420999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31234421003.

It is not an unprimeable number, because it can be changed into a prime (31234411003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2813 + ... + 249953.

It is an arithmetic number, because the mean of its divisors is an integer number (3988871880).

Almost surely, 2^31234421003 is an apocalyptic number.

31234421003 is a deficient number, since it is larger than the sum of its proper divisors (676554037).

31234421003 is a wasteful number, since it uses less digits than its factorization.

31234421003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249877.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 31234421003 its reverse (30012443213), we get a palindrome (61246864216).

The spelling of 31234421003 in words is "thirty-one billion, two hundred thirty-four million, four hundred twenty-one thousand, three".