1012211012323 has 4 divisors (see below), whose sum is σ = 1156812585520. Its totient is φ = 867609439128.

The previous prime is 1012211012303. The next prime is 1012211012347. The reversal of 1012211012323 is 3232101122101.

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 1012211012323 - 2¹³ = 1012211004131 is a prime.

It is a super-2 number, since 2×1012211012323² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012211012323.

It is not an unprimeable number, because it can be changed into a prime (1012211012303) 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 3 ways as a sum of consecutive naturals, for example, 72300786588 + ... + 72300786601.

It is an arithmetic number, because the mean of its divisors is an integer number (289203146380).

Almost surely, 2^{1012211012323} is an apocalyptic number.

1012211012323 is a deficient number, since it is larger than the sum of its proper divisors (144601573197).

1012211012323 is an equidigital number, since it uses as much as digits as its factorization.

1012211012323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144601573196.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1012211012323 its reverse (3232101122101), we get a palindrome (4244312134424).

The spelling of 1012211012323 in words is "one trillion, twelve billion, two hundred eleven million, twelve thousand, three hundred twenty-three".