1211212303023 has 8 divisors (see below), whose sum is σ = 1614977451136. Its totient is φ = 807461011800.

The previous prime is 1211212302961. The next prime is 1211212303117. The reversal of 1211212303023 is 3203032121121.

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

It is not a de Polignac number, because 1211212303023 - 2²⁹ = 1210675432111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211212307023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3258523 + ... + 3611148.

It is an arithmetic number, because the mean of its divisors is an integer number (201872181392).

Almost surely, 2^{1211212303023} is an apocalyptic number.

1211212303023 is a deficient number, since it is larger than the sum of its proper divisors (403765148113).

1211212303023 is an equidigital number, since it uses as much as digits as its factorization.

1211212303023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6928445.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1211212303023 its reverse (3203032121121), we get a palindrome (4414244424144).

The spelling of 1211212303023 in words is "one trillion, two hundred eleven billion, two hundred twelve million, three hundred three thousand, twenty-three".