1245343424331 has 4 divisors (see below), whose sum is σ = 1660457899112. Its totient is φ = 830228949552.

The previous prime is 1245343424327. The next prime is 1245343424407. The reversal of 1245343424331 is 1334243435421.

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

It is not a de Polignac number, because 1245343424331 - 2² = 1245343424327 is a prime.

It is a super-3 number, since 3×1245343424331³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1245343424331.

It is not an unprimeable number, because it can be changed into a prime (1245343424321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207557237386 + ... + 207557237391.

It is an arithmetic number, because the mean of its divisors is an integer number (415114474778).

Almost surely, 2^{1245343424331} is an apocalyptic number.

1245343424331 is a deficient number, since it is larger than the sum of its proper divisors (415114474781).

1245343424331 is an equidigital number, since it uses as much as digits as its factorization.

1245343424331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415114474780.

The product of its digits is 414720, while the sum is 39.

Adding to 1245343424331 its reverse (1334243435421), we get a palindrome (2579586859752).

The spelling of 1245343424331 in words is "one trillion, two hundred forty-five billion, three hundred forty-three million, four hundred twenty-four thousand, three hundred thirty-one".