1012201323 has 8 divisors (see below), whose sum is σ = 1542402048. Its totient is φ = 578400744.

The previous prime is 1012201321. The next prime is 1012201331. The reversal of 1012201323 is 3231022101.

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

It is not a de Polignac number, because 1012201323 - 2¹ = 1012201321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012201321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24100011 + ... + 24100052.

It is an arithmetic number, because the mean of its divisors is an integer number (192800256).

Almost surely, 2^1012201323 is an apocalyptic number.

1012201323 is a deficient number, since it is larger than the sum of its proper divisors (530200725).

1012201323 is an equidigital number, since it uses as much as digits as its factorization.

1012201323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48200073.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1012201323 is about 31815.1115509596. Note that the first 3 decimals coincide. The cubic root of 1012201323 is about 1004.0506775238.

Adding to 1012201323 its reverse (3231022101), we get a palindrome (4243223424).

The spelling of 1012201323 in words is "one billion, twelve million, two hundred one thousand, three hundred twenty-three".