31430243031423 has 4 divisors (see below), whose sum is σ = 41906990708568. Its totient is φ = 20953495354280.

The previous prime is 31430243031401. The next prime is 31430243031463. The reversal of 31430243031423 is 32413034203413.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31430243031423 - 2⁶ = 31430243031359 is a prime.

It is a super-3 number, since 3×31430243031423³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31430243031463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5238373838568 + ... + 5238373838573.

It is an arithmetic number, because the mean of its divisors is an integer number (10476747677142).

Almost surely, 2^{31430243031423} is an apocalyptic number.

31430243031423 is a deficient number, since it is larger than the sum of its proper divisors (10476747677145).

31430243031423 is a wasteful number, since it uses less digits than its factorization.

31430243031423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10476747677144.

The product of its (nonzero) digits is 62208, while the sum is 33.

Adding to 31430243031423 its reverse (32413034203413), we get a palindrome (63843277234836).

The spelling of 31430243031423 in words is "thirty-one trillion, four hundred thirty billion, two hundred forty-three million, thirty-one thousand, four hundred twenty-three".