1245351212543 has 8 divisors (see below), whose sum is σ = 1320197780880. Its totient is φ = 1170681379200.

The previous prime is 1245351212537. The next prime is 1245351212549. The reversal of 1245351212543 is 3452121535421.

It is an interprime number because it is at equal distance from previous prime (1245351212537) and next prime (1245351212549).

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

It is a cyclic number.

It is not a de Polignac number, because 1245351212543 - 2⁴ = 1245351212527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1245351212497 and 1245351212506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245351212549) 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, 44169233 + ... + 44197418.

It is an arithmetic number, because the mean of its divisors is an integer number (165024722610).

Almost surely, 2^{1245351212543} is an apocalyptic number.

1245351212543 is a deficient number, since it is larger than the sum of its proper divisors (74846568337).

1245351212543 is an equidigital number, since it uses as much as digits as its factorization.

1245351212543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88367497.

The product of its digits is 144000, while the sum is 38.

Adding to 1245351212543 its reverse (3452121535421), we get a palindrome (4697472747964).

The spelling of 1245351212543 in words is "one trillion, two hundred forty-five billion, three hundred fifty-one million, two hundred twelve thousand, five hundred forty-three".