2143354524231 has 4 divisors (see below), whose sum is σ = 2857806032312. Its totient is φ = 1428903016152.

The previous prime is 2143354524229. The next prime is 2143354524281. The reversal of 2143354524231 is 1324254533412.

It is a happy number.

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

It is not a de Polignac number, because 2143354524231 - 2¹ = 2143354524229 is a prime.

It is a super-2 number, since 2×2143354524231² (a number of 25 digits) contains 22 as substring.

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 2143354524231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143354524221) 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, 357225754036 + ... + 357225754041.

It is an arithmetic number, because the mean of its divisors is an integer number (714451508078).

Almost surely, 2^{2143354524231} is an apocalyptic number.

2143354524231 is a deficient number, since it is larger than the sum of its proper divisors (714451508081).

2143354524231 is an equidigital number, since it uses as much as digits as its factorization.

2143354524231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714451508080.

The product of its digits is 345600, while the sum is 39.

The spelling of 2143354524231 in words is "two trillion, one hundred forty-three billion, three hundred fifty-four million, five hundred twenty-four thousand, two hundred thirty-one".