31200340340043 has 24 divisors (see below), whose sum is σ = 51536787146208. Its totient is φ = 17817874728192.

The previous prime is 31200340340009. The next prime is 31200340340069. The reversal of 31200340340043 is 34004304300213.

31200340340043 is a `hidden beast` number, since 312 + 0 + 0 + 3 + 4 + 0 + 340 + 0 + 4 + 3 = 666.

It is not a de Polignac number, because 31200340340043 - 2³⁴ = 31183160470859 is a prime.

It is a super-2 number, since 2×31200340340043² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31200340339989 and 31200340340016.

It is not an unprimeable number, because it can be changed into a prime (31200340300043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 151162446 + ... + 151368707.

It is an arithmetic number, because the mean of its divisors is an integer number (2147366131092).

Almost surely, 2^{31200340340043} is an apocalyptic number.

31200340340043 is a deficient number, since it is larger than the sum of its proper divisors (20336446806165).

31200340340043 is a wasteful number, since it uses less digits than its factorization.

31200340340043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302532803 (or 302532800 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 31200340340043 its reverse (34004304300213), we get a palindrome (65204644640256).

The spelling of 31200340340043 in words is "thirty-one trillion, two hundred billion, three hundred forty million, three hundred forty thousand, forty-three".