1230244443649 has 6 divisors (see below), whose sum is σ = 1332158184726. Its totient is φ = 1135610255520.

The previous prime is 1230244443647. The next prime is 1230244443667. The reversal of 1230244443649 is 9463444420321.

It can be written as a sum of positive squares in 3 ways, for example, as 80914647025 + 1149329796624 = 284455^2 + 1072068^2 .

It is not a de Polignac number, because 1230244443649 - 2¹ = 1230244443647 is a prime.

It is a super-2 number, since 2×1230244443649² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230244443599 and 1230244443608.

It is not an unprimeable number, because it can be changed into a prime (1230244443647) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3639776292 + ... + 3639776629.

It is an arithmetic number, because the mean of its divisors is an integer number (222026364121).

Almost surely, 2^{1230244443649} is an apocalyptic number.

It is an amenable number.

1230244443649 is a deficient number, since it is larger than the sum of its proper divisors (101913741077).

1230244443649 is an equidigital number, since it uses as much as digits as its factorization.

1230244443649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7279552947 (or 7279552934 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 46.

The spelling of 1230244443649 in words is "one trillion, two hundred thirty billion, two hundred forty-four million, four hundred forty-three thousand, six hundred forty-nine".