31200230034 has 24 divisors (see below), whose sum is σ = 67895706060. Its totient is φ = 10354660128.

The previous prime is 31200230027. The next prime is 31200230063. The reversal of 31200230034 is 43003200213.

It can be written as a sum of positive squares in 2 ways, for example, as 24336936009 + 6863294025 = 156003^2 + 82845^2 .

It is a super-3 number, since 3×31200230034³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31200229989 and 31200230016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3780477 + ... + 3788720.

Almost surely, 2^31200230034 is an apocalyptic number.

31200230034 is an abundant number, since it is smaller than the sum of its proper divisors (36695476026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31200230034 is a wasteful number, since it uses less digits than its factorization.

31200230034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7569434 (or 7569431 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 31200230034 its reverse (43003200213), we get a palindrome (74203430247).

The spelling of 31200230034 in words is "thirty-one billion, two hundred million, two hundred thirty thousand, thirty-four".