31424313420 has 48 divisors (see below), whose sum is σ = 97764532320. Its totient is φ = 8379816768.

The previous prime is 31424313367. The next prime is 31424313433. The reversal of 31424313420 is 2431342413.

31424313420 is a `hidden beast` number, since 314 + 2 + 4 + 3 + 1 + 342 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29096047 + ... + 29097126.

It is an arithmetic number, because the mean of its divisors is an integer number (2036761090).

Almost surely, 2^31424313420 is an apocalyptic number.

31424313420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31424313420 is an abundant number, since it is smaller than the sum of its proper divisors (66340218900).

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

31424313420 is a wasteful number, since it uses less digits than its factorization.

31424313420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58193191 (or 58193183 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 31424313420 its reverse (2431342413), we get a palindrome (33855655833).

The spelling of 31424313420 in words is "thirty-one billion, four hundred twenty-four million, three hundred thirteen thousand, four hundred twenty".