31421413402 has 8 divisors (see below), whose sum is σ = 47149826976. Its totient is φ = 15704804412.

The previous prime is 31421413369. The next prime is 31421413423. The reversal of 31421413402 is 20431412413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2944488 + ... + 2955139.

It is an arithmetic number, because the mean of its divisors is an integer number (5893728372).

Almost surely, 2^31421413402 is an apocalyptic number.

31421413402 is a deficient number, since it is larger than the sum of its proper divisors (15728413574).

31421413402 is a wasteful number, since it uses less digits than its factorization.

31421413402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5902292.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 31421413402 its reverse (20431412413), we get a palindrome (51852825815).

The spelling of 31421413402 in words is "thirty-one billion, four hundred twenty-one million, four hundred thirteen thousand, four hundred two".