123302431 has 8 divisors (see below), whose sum is σ = 141109280. Its totient is φ = 105543648.

The previous prime is 123302429. The next prime is 123302437. The reversal of 123302431 is 134203321.

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

It is not a de Polignac number, because 123302431 - 2¹ = 123302429 is a prime.

It is a super-2 number, since 2×123302431² = 30406978981019522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123302399 and 123302408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123302437) 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, 6336 + ... + 16933.

It is an arithmetic number, because the mean of its divisors is an integer number (17638660).

Almost surely, 2^123302431 is an apocalyptic number.

123302431 is a deficient number, since it is larger than the sum of its proper divisors (17806849).

123302431 is an equidigital number, since it uses as much as digits as its factorization.

123302431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24033.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 123302431 is about 11104.1627779856. The cubic root of 123302431 is about 497.7262504663.

Adding to 123302431 its reverse (134203321), we get a palindrome (257505752).

The spelling of 123302431 in words is "one hundred twenty-three million, three hundred two thousand, four hundred thirty-one".