31203200001 has 32 divisors (see below), whose sum is σ = 44738707968. Its totient is φ = 19273478400.

The previous prime is 31203199991. The next prime is 31203200089. The reversal of 31203200001 is 10000230213.

It is a happy number.

It is not a de Polignac number, because 31203200001 - 2¹⁴ = 31203183617 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31203200001.

It is not an unprimeable number, because it can be changed into a prime (31203207001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9740266 + ... + 9743468.

It is an arithmetic number, because the mean of its divisors is an integer number (1398084624).

Almost surely, 2^31203200001 is an apocalyptic number.

It is an amenable number.

31203200001 is a deficient number, since it is larger than the sum of its proper divisors (13535507967).

31203200001 is a wasteful number, since it uses less digits than its factorization.

31203200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6141.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 31203200001 its reverse (10000230213), we get a palindrome (41203430214).

The spelling of 31203200001 in words is "thirty-one billion, two hundred three million, two hundred thousand, one".