31430031421003 has 8 divisors (see below), whose sum is σ = 32798718108576. Its totient is φ = 30061525032000.

The previous prime is 31430031420967. The next prime is 31430031421027. The reversal of 31430031421003 is 30012413003413.

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

It is a cyclic number.

It is not a de Polignac number, because 31430031421003 - 2³⁷ = 31292592467531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31430031451003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44718348 + ... + 45415753.

It is an arithmetic number, because the mean of its divisors is an integer number (4099839763572).

Almost surely, 2^{31430031421003} is an apocalyptic number.

31430031421003 is a deficient number, since it is larger than the sum of its proper divisors (1368686687573).

31430031421003 is a wasteful number, since it uses less digits than its factorization.

31430031421003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90149285.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31430031421003 its reverse (30012413003413), we get a palindrome (61442444424416).

The spelling of 31430031421003 in words is "thirty-one trillion, four hundred thirty billion, thirty-one million, four hundred twenty-one thousand, three".