31200333332113 has 16 divisors (see below), whose sum is σ = 35609317687296. Its totient is φ = 27059887151440.

The previous prime is 31200333332009. The next prime is 31200333332131. The reversal of 31200333332113 is 31123333300213.

It is a de Polignac number, because none of the positive numbers 2^k-31200333332113 is a prime.

It is a super-2 number, since 2×31200333332113² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31200333336113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160897195 + ... + 161090992.

It is an arithmetic number, because the mean of its divisors is an integer number (2225582355456).

Almost surely, 2^{31200333332113} is an apocalyptic number.

It is an amenable number.

31200333332113 is a deficient number, since it is larger than the sum of its proper divisors (4408984355183).

31200333332113 is a wasteful number, since it uses less digits than its factorization.

31200333332113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321988604.

The product of its (nonzero) digits is 8748, while the sum is 28.

Adding to 31200333332113 its reverse (31123333300213), we get a palindrome (62323666632326).

The spelling of 31200333332113 in words is "thirty-one trillion, two hundred billion, three hundred thirty-three million, three hundred thirty-two thousand, one hundred thirteen".