31420323013143 has 8 divisors (see below), whose sum is σ = 42056774773488. Its totient is φ = 20865376630784.

The previous prime is 31420323013141. The next prime is 31420323013201. The reversal of 31420323013143 is 34131032302413.

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 31420323013143 - 2¹ = 31420323013141 is a prime.

It is a super-2 number, since 2×31420323013143² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31420323013143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31420323013141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20376343596 + ... + 20376345137.

It is an arithmetic number, because the mean of its divisors is an integer number (5257096846686).

Almost surely, 2^{31420323013143} is an apocalyptic number.

31420323013143 is a deficient number, since it is larger than the sum of its proper divisors (10636451760345).

31420323013143 is a wasteful number, since it uses less digits than its factorization.

31420323013143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40752688993.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 31420323013143 its reverse (34131032302413), we get a palindrome (65551355315556).

The spelling of 31420323013143 in words is "thirty-one trillion, four hundred twenty billion, three hundred twenty-three million, thirteen thousand, one hundred forty-three".