31430404011331 has 8 divisors (see below), whose sum is σ = 33908896035504. Its totient is φ = 28960593221280.

The previous prime is 31430404011323. The next prime is 31430404011371. The reversal of 31430404011331 is 13311040403413.

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 31430404011331 - 2³ = 31430404011323 is a prime.

It is a super-3 number, since 3×31430404011331³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31430404011331.

It is not an unprimeable number, because it can be changed into a prime (31430404011301) by changing a digit.

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, 2170301005 + ... + 2170315486.

It is an arithmetic number, because the mean of its divisors is an integer number (4238612004438).

Almost surely, 2^{31430404011331} is an apocalyptic number.

31430404011331 is a deficient number, since it is larger than the sum of its proper divisors (2478492024173).

31430404011331 is a wasteful number, since it uses less digits than its factorization.

31430404011331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4340617061.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 31430404011331 its reverse (13311040403413), we get a palindrome (44741444414744).

The spelling of 31430404011331 in words is "thirty-one trillion, four hundred thirty billion, four hundred four million, eleven thousand, three hundred thirty-one".