1213011302323 has 16 divisors (see below), whose sum is σ = 1292878463904. Its totient is φ = 1134093841920.

The previous prime is 1213011302227. The next prime is 1213011302339. The reversal of 1213011302323 is 3232031103121.

It is a cyclic number.

It is not a de Polignac number, because 1213011302323 - 2³³ = 1204421367731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1213011302294 and 1213011302303.

It is not an unprimeable number, because it can be changed into a prime (1213011302623) 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 in 15 ways as a sum of consecutive naturals, for example, 10675536 + ... + 10788562.

It is an arithmetic number, because the mean of its divisors is an integer number (80804903994).

Almost surely, 2^{1213011302323} is an apocalyptic number.

1213011302323 is a deficient number, since it is larger than the sum of its proper divisors (79867161581).

1213011302323 is a wasteful number, since it uses less digits than its factorization.

1213011302323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117222.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1213011302323 its reverse (3232031103121), we get a palindrome (4445042405444).

The spelling of 1213011302323 in words is "one trillion, two hundred thirteen billion, eleven million, three hundred two thousand, three hundred twenty-three".