1231452442423 has 16 divisors (see below), whose sum is σ = 1411532987200. Its totient is φ = 1052412134400.

The previous prime is 1231452442277. The next prime is 1231452442469. The reversal of 1231452442423 is 3242442541321.

It is a cyclic number.

It is not a de Polignac number, because 1231452442423 - 2¹³ = 1231452434231 is a prime.

It is a super-2 number, since 2×1231452442423² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231452442223) 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, 50413753 + ... + 50438173.

It is an arithmetic number, because the mean of its divisors is an integer number (88220811700).

Almost surely, 2^{1231452442423} is an apocalyptic number.

1231452442423 is a deficient number, since it is larger than the sum of its proper divisors (180080544777).

1231452442423 is a wasteful number, since it uses less digits than its factorization.

1231452442423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45418.

The product of its digits is 184320, while the sum is 37.

Adding to 1231452442423 its reverse (3242442541321), we get a palindrome (4473894983744).

The spelling of 1231452442423 in words is "one trillion, two hundred thirty-one billion, four hundred fifty-two million, four hundred forty-two thousand, four hundred twenty-three".