31430234043 has 24 divisors (see below), whose sum is σ = 48925854432. Its totient is φ = 19328082048.

The previous prime is 31430234041. The next prime is 31430234051. The reversal of 31430234043 is 34043203413.

31430234043 is a `hidden beast` number, since 3 + 14 + 302 + 340 + 4 + 3 = 666.

It is not a de Polignac number, because 31430234043 - 2¹ = 31430234041 is a prime.

It is a super-2 number, since 2×31430234043² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31430233998 and 31430234016.

It is not an unprimeable number, because it can be changed into a prime (31430234041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73930 + ... + 261392.

It is an arithmetic number, because the mean of its divisors is an integer number (2038577268).

Almost surely, 2^31430234043 is an apocalyptic number.

31430234043 is a deficient number, since it is larger than the sum of its proper divisors (17495620389).

31430234043 is a wasteful number, since it uses less digits than its factorization.

31430234043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188915 (or 188912 counting only the distinct ones).

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

Adding to 31430234043 its reverse (34043203413), we get a palindrome (65473437456).

The spelling of 31430234043 in words is "thirty-one billion, four hundred thirty million, two hundred thirty-four thousand, forty-three".