31000200323 has 4 divisors (see below), whose sum is σ = 31001388888. Its totient is φ = 30999011760.

The previous prime is 31000200311. The next prime is 31000200403. The reversal of 31000200323 is 32300200013.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31000200323 - 2⁸ = 31000200067 is a prime.

It is a super-2 number, since 2×31000200323² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31000200298 and 31000200307.

It is not an unprimeable number, because it can be changed into a prime (31000209323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554261 + ... + 607622.

It is an arithmetic number, because the mean of its divisors is an integer number (7750347222).

Almost surely, 2^31000200323 is an apocalyptic number.

31000200323 is a deficient number, since it is larger than the sum of its proper divisors (1188565).

31000200323 is a wasteful number, since it uses less digits than its factorization.

31000200323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188564.

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 31000200323 its reverse (32300200013), we get a palindrome (63300400336).

The spelling of 31000200323 in words is "thirty-one billion, two hundred thousand, three hundred twenty-three".