31420345005430 has 16 divisors (see below), whose sum is σ = 56566769436144. Its totient is φ = 12565882796320.

The previous prime is 31420345005359. The next prime is 31420345005451. The reversal of 31420345005430 is 3450054302413.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 281842216 + ... + 281953675.

It is an arithmetic number, because the mean of its divisors is an integer number (3535423089759).

Almost surely, 2^{31420345005430} is an apocalyptic number.

31420345005430 is a deficient number, since it is larger than the sum of its proper divisors (25146424430714).

31420345005430 is a wasteful number, since it uses less digits than its factorization.

31420345005430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563801471.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 31420345005430 its reverse (3450054302413), we get a palindrome (34870399307843).

The spelling of 31420345005430 in words is "thirty-one trillion, four hundred twenty billion, three hundred forty-five million, five thousand, four hundred thirty".