1225347367443 has 4 divisors (see below), whose sum is σ = 1633796489928. Its totient is φ = 816898244960.

The previous prime is 1225347367427. The next prime is 1225347367457. The reversal of 1225347367443 is 3447637435221.

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

It is a cyclic number.

It is not a de Polignac number, because 1225347367443 - 2⁴ = 1225347367427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1225347367843) 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, 204224561238 + ... + 204224561243.

It is an arithmetic number, because the mean of its divisors is an integer number (408449122482).

Almost surely, 2^{1225347367443} is an apocalyptic number.

1225347367443 is a deficient number, since it is larger than the sum of its proper divisors (408449122485).

1225347367443 is an equidigital number, since it uses as much as digits as its factorization.

1225347367443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408449122484.

The product of its digits is 10160640, while the sum is 51.

The spelling of 1225347367443 in words is "one trillion, two hundred twenty-five billion, three hundred forty-seven million, three hundred sixty-seven thousand, four hundred forty-three".