31203020002 has 16 divisors (see below), whose sum is σ = 58353700032. Its totient is φ = 12157020720.

The previous prime is 31203019999. The next prime is 31203020077. The reversal of 31203020002 is 20002030213.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101308353 + ... + 101308660.

It is an arithmetic number, because the mean of its divisors is an integer number (3647106252).

Almost surely, 2^31203020002 is an apocalyptic number.

31203020002 is a deficient number, since it is larger than the sum of its proper divisors (27150680030).

31203020002 is a wasteful number, since it uses less digits than its factorization.

31203020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202617033.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 31203020002 its reverse (20002030213), we get a palindrome (51205050215).

The spelling of 31203020002 in words is "thirty-one billion, two hundred three million, twenty thousand, two".