31200200011 has 4 divisors (see below), whose sum is σ = 33035505912. Its totient is φ = 29364894112.

The previous prime is 31200199999. The next prime is 31200200033. The reversal of 31200200011 is 11000200213.

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 31200200011 - 2⁷ = 31200199883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31200200071) 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, 917652925 + ... + 917652958.

It is an arithmetic number, because the mean of its divisors is an integer number (8258876478).

Almost surely, 2^31200200011 is an apocalyptic number.

31200200011 is a deficient number, since it is larger than the sum of its proper divisors (1835305901).

31200200011 is a wasteful number, since it uses less digits than its factorization.

31200200011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835305900.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 31200200011 its reverse (11000200213), we get a palindrome (42200400224).

The spelling of 31200200011 in words is "thirty-one billion, two hundred million, two hundred thousand, eleven".