31431403030 has 16 divisors (see below), whose sum is σ = 59554237680. Its totient is φ = 11910847392.

The previous prime is 31431403021. The next prime is 31431403039. The reversal of 31431403030 is 3030413413.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31431403021) and next prime (31431403039).

It is a junction number, because it is equal to n+sod(n) for n = 31431402992 and 31431403010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31431403039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82714029 + ... + 82714408.

It is an arithmetic number, because the mean of its divisors is an integer number (3722139855).

Almost surely, 2^31431403030 is an apocalyptic number.

31431403030 is a deficient number, since it is larger than the sum of its proper divisors (28122834650).

31431403030 is a wasteful number, since it uses less digits than its factorization.

31431403030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165428463.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 31431403030 its reverse (3030413413), we get a palindrome (34461816443).

The spelling of 31431403030 in words is "thirty-one billion, four hundred thirty-one million, four hundred three thousand, thirty".