31323200001 has 32 divisors (see below), whose sum is σ = 43571478528. Its totient is φ = 19997369280.

The previous prime is 31323199981. The next prime is 31323200011. The reversal of 31323200001 is 10000232313.

It is not a de Polignac number, because 31323200001 - 2¹¹ = 31323197953 is a prime.

It is a super-2 number, since 2×31323200001² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31323200011) 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, 5095936 + ... + 5102078.

It is an arithmetic number, because the mean of its divisors is an integer number (1361608704).

Almost surely, 2^31323200001 is an apocalyptic number.

It is an amenable number.

31323200001 is a deficient number, since it is larger than the sum of its proper divisors (12248278527).

31323200001 is a wasteful number, since it uses less digits than its factorization.

31323200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6901.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 31323200001 its reverse (10000232313), we get a palindrome (41323432314).

The spelling of 31323200001 in words is "thirty-one billion, three hundred twenty-three million, two hundred thousand, one".