1231452442353 has 12 divisors (see below), whose sum is σ = 1910007870000. Its totient is φ = 703687109832.

The previous prime is 1231452442277. The next prime is 1231452442469. The reversal of 1231452442353 is 3532442541321.

It is a happy number.

It is not a de Polignac number, because 1231452442353 - 2²⁶ = 1231385333489 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1231452440353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4188613603 + ... + 4188613896.

It is an arithmetic number, because the mean of its divisors is an integer number (159167322500).

Almost surely, 2^{1231452442353} is an apocalyptic number.

It is an amenable number.

1231452442353 is a deficient number, since it is larger than the sum of its proper divisors (678555427647).

1231452442353 is an equidigital number, since it uses as much as digits as its factorization.

1231452442353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8377227516 (or 8377227509 counting only the distinct ones).

The product of its digits is 345600, while the sum is 39.

Adding to 1231452442353 its reverse (3532442541321), we get a palindrome (4763894983674).

The spelling of 1231452442353 in words is "one trillion, two hundred thirty-one billion, four hundred fifty-two million, four hundred forty-two thousand, three hundred fifty-three".