202423131243 has 96 divisors (see below), whose sum is σ = 316538127360. Its totient is φ = 129154072320.

The previous prime is 202423131241. The next prime is 202423131259. The reversal of 202423131243 is 342131324202.

202423131243 is a `hidden beast` number, since 202 + 423 + 1 + 31 + 2 + 4 + 3 = 666.

It is not a de Polignac number, because 202423131243 - 2¹ = 202423131241 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 (202423131241) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 370060296 + ... + 370060842.

It is an arithmetic number, because the mean of its divisors is an integer number (3297272160).

Almost surely, 2^202423131243 is an apocalyptic number.

202423131243 is a deficient number, since it is larger than the sum of its proper divisors (114114996117).

202423131243 is an equidigital number, since it uses as much as digits as its factorization.

202423131243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199 (or 1187 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 202423131243 its reverse (342131324202), we get a palindrome (544554455445).

The spelling of 202423131243 in words is "two hundred two billion, four hundred twenty-three million, one hundred thirty-one thousand, two hundred forty-three".