31143201423 has 8 divisors (see below), whose sum is σ = 41541717936. Its totient is φ = 20753409600.

The previous prime is 31143201407. The next prime is 31143201503. The reversal of 31143201423 is 32410234113.

It is a happy number.

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

It is not a de Polignac number, because 31143201423 - 2⁴ = 31143201407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31143201393 and 31143201402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31143201403) 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, 2172838 + ... + 2187123.

It is an arithmetic number, because the mean of its divisors is an integer number (5192714742).

Almost surely, 2^31143201423 is an apocalyptic number.

31143201423 is a deficient number, since it is larger than the sum of its proper divisors (10398516513).

31143201423 is a wasteful number, since it uses less digits than its factorization.

31143201423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4362345.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31143201423 its reverse (32410234113), we get a palindrome (63553435536).

The spelling of 31143201423 in words is "thirty-one billion, one hundred forty-three million, two hundred one thousand, four hundred twenty-three".