1011201323 has 4 divisors (see below), whose sum is σ = 1103128728. Its totient is φ = 919273920.

The previous prime is 1011201313. The next prime is 1011201353. The reversal of 1011201323 is 3231021101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011201323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011201298 and 1011201307.

It is not an unprimeable number, because it can be changed into a prime (1011201313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45963686 + ... + 45963707.

It is an arithmetic number, because the mean of its divisors is an integer number (275782182).

Almost surely, 2^1011201323 is an apocalyptic number.

1011201323 is a deficient number, since it is larger than the sum of its proper divisors (91927405).

1011201323 is an equidigital number, since it uses as much as digits as its factorization.

1011201323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91927404.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1011201323 is about 31799.3918652543. The cubic root of 1011201323 is about 1003.7199193747.

Adding to 1011201323 its reverse (3231021101), we get a palindrome (4242222424).

The spelling of 1011201323 in words is "one billion, eleven million, two hundred one thousand, three hundred twenty-three".