1231300201423 has 4 divisors (see below), whose sum is σ = 1231352941320. Its totient is φ = 1231247461528.

The previous prime is 1231300201343. The next prime is 1231300201433. The reversal of 1231300201423 is 3241020031321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1231300201423 is a prime.

It is a super-2 number, since 2×1231300201423² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1231300201394 and 1231300201403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231300201433) 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, 26334913 + ... + 26381626.

It is an arithmetic number, because the mean of its divisors is an integer number (307838235330).

Almost surely, 2^{1231300201423} is an apocalyptic number.

1231300201423 is a deficient number, since it is larger than the sum of its proper divisors (52739897).

1231300201423 is an equidigital number, since it uses as much as digits as its factorization.

1231300201423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52739896.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1231300201423 its reverse (3241020031321), we get a palindrome (4472320232744).

The spelling of 1231300201423 in words is "one trillion, two hundred thirty-one billion, three hundred million, two hundred one thousand, four hundred twenty-three".