31041421002 has 96 divisors (see below), whose sum is σ = 69610544640. Its totient is φ = 9991641600.

The previous prime is 31041420959. The next prime is 31041421007. The reversal of 31041421002 is 20012414013.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (31041421007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36997699 + ... + 36998537.

It is an arithmetic number, because the mean of its divisors is an integer number (725109840).

Almost surely, 2^31041421002 is an apocalyptic number.

31041421002 is an abundant number, since it is smaller than the sum of its proper divisors (38569123638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31041421002 is a wasteful number, since it uses less digits than its factorization.

31041421002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428 (or 1425 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 31041421002 its reverse (20012414013), we get a palindrome (51053835015).

The spelling of 31041421002 in words is "thirty-one billion, forty-one million, four hundred twenty-one thousand, two".