1303231212026 has 4 divisors (see below), whose sum is σ = 1954846818042. Its totient is φ = 651615606012.

The previous prime is 1303231211983. The next prime is 1303231212029. The reversal of 1303231212026 is 6202121323031.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 1163164407001 + 140066805025 = 1078501^2 + 374255^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1303231211986 and 1303231212004.

It is not an unprimeable number, because it can be changed into a prime (1303231212029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325807803005 + ... + 325807803008.

Almost surely, 2^{1303231212026} is an apocalyptic number.

1303231212026 is a deficient number, since it is larger than the sum of its proper divisors (651615606016).

1303231212026 is an equidigital number, since it uses as much as digits as its factorization.

1303231212026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651615606015.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 1303231212026 its reverse (6202121323031), we get a palindrome (7505352535057).

The spelling of 1303231212026 in words is "one trillion, three hundred three billion, two hundred thirty-one million, two hundred twelve thousand, twenty-six".