31030030312002 has 256 divisors, whose sum is σ = 75859500810240. Its totient is φ = 9359531596800.

The previous prime is 31030030311997. The next prime is 31030030312003. The reversal of 31030030312002 is 20021303003013.

31030030312002 is a `hidden beast` number, since 310 + 30 + 0 + 303 + 1 + 20 + 0 + 2 = 666.

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 (31030030312003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2759936593 + ... + 2759947835.

It is an arithmetic number, because the mean of its divisors is an integer number (296326175040).

Almost surely, 2^{31030030312002} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31030030312002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37929750405120).

31030030312002 is an abundant number, since it is smaller than the sum of its proper divisors (44829470498238).

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

31030030312002 is a wasteful number, since it uses less digits than its factorization.

31030030312002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11926 (or 11920 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 31030030312002 its reverse (20021303003013), we get a palindrome (51051333315015).

The spelling of 31030030312002 in words is "thirty-one trillion, thirty billion, thirty million, three hundred twelve thousand, two".