11312021020323 has 4 divisors (see below), whose sum is σ = 15082694693768. Its totient is φ = 7541347346880.

The previous prime is 11312021020319. The next prime is 11312021020361. The reversal of 11312021020323 is 32302012021311.

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

It is not a de Polignac number, because 11312021020323 - 2² = 11312021020319 is a prime.

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 11312021020323.

It is not an unprimeable number, because it can be changed into a prime (11312021020823) 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, 1885336836718 + ... + 1885336836723.

It is an arithmetic number, because the mean of its divisors is an integer number (3770673673442).

Almost surely, 2^{11312021020323} is an apocalyptic number.

11312021020323 is a deficient number, since it is larger than the sum of its proper divisors (3770673673445).

11312021020323 is an equidigital number, since it uses as much as digits as its factorization.

11312021020323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3770673673444.

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

Adding to 11312021020323 its reverse (32302012021311), we get a palindrome (43614033041634).

The spelling of 11312021020323 in words is "eleven trillion, three hundred twelve billion, twenty-one million, twenty thousand, three hundred twenty-three".