20231343243 has 16 divisors (see below), whose sum is σ = 30001988640. Its totient is φ = 13474229472.

The previous prime is 20231343239. The next prime is 20231343271. The reversal of 20231343243 is 34234313202.

20231343243 is a `hidden beast` number, since 20 + 2 + 313 + 4 + 324 + 3 = 666.

It is not a de Polignac number, because 20231343243 - 2² = 20231343239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20231353243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342496 + ... + 397197.

It is an arithmetic number, because the mean of its divisors is an integer number (1875124290).

Almost surely, 2^20231343243 is an apocalyptic number.

20231343243 is a deficient number, since it is larger than the sum of its proper divisors (9770645397).

20231343243 is a wasteful number, since it uses less digits than its factorization.

20231343243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740715 (or 740709 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 20231343243 its reverse (34234313202), we get a palindrome (54465656445).

The spelling of 20231343243 in words is "twenty billion, two hundred thirty-one million, three hundred forty-three thousand, two hundred forty-three".