231240002423 has 16 divisors (see below), whose sum is σ = 240018573600. Its totient is φ = 222516013440.

The previous prime is 231240002387. The next prime is 231240002459. The reversal of 231240002423 is 324200042132.

It is an interprime number because it is at equal distance from previous prime (231240002387) and next prime (231240002459).

It is a cyclic number.

It is not a de Polignac number, because 231240002423 - 2³⁴ = 214060133239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231240002023) 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, 15571640 + ... + 15586482.

It is an arithmetic number, because the mean of its divisors is an integer number (15001160850).

Almost surely, 2^231240002423 is an apocalyptic number.

231240002423 is a deficient number, since it is larger than the sum of its proper divisors (8778571177).

231240002423 is a wasteful number, since it uses less digits than its factorization.

231240002423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16642.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 231240002423 its reverse (324200042132), we get a palindrome (555440044555).

The spelling of 231240002423 in words is "two hundred thirty-one billion, two hundred forty million, two thousand, four hundred twenty-three".