31030200111 has 8 divisors (see below), whose sum is σ = 41375586304. Its totient is φ = 20685807000.

The previous prime is 31030200101. The next prime is 31030200119. The reversal of 31030200111 is 11100203013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-31030200111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31030200119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172015 + ... + 302736.

It is an arithmetic number, because the mean of its divisors is an integer number (5171948288).

Almost surely, 2^31030200111 is an apocalyptic number.

31030200111 is a deficient number, since it is larger than the sum of its proper divisors (10345386193).

31030200111 is a wasteful number, since it uses less digits than its factorization.

31030200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496541.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 31030200111 its reverse (11100203013), we get a palindrome (42130403124).

The spelling of 31030200111 in words is "thirty-one billion, thirty million, two hundred thousand, one hundred eleven".