2012313221023 has 8 divisors (see below), whose sum is σ = 2302140472992. Its totient is φ = 1723074452736.

The previous prime is 2012313220999. The next prime is 2012313221027. The reversal of 2012313221023 is 3201223132102.

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

It is not a de Polignac number, because 2012313221023 - 2²¹ = 2012311123871 is a prime.

It is a super-2 number, since 2×2012313221023² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012313220985 and 2012313221003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012313221027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147113590 + ... + 147127267.

It is an arithmetic number, because the mean of its divisors is an integer number (287767559124).

Almost surely, 2^{2012313221023} is an apocalyptic number.

2012313221023 is a deficient number, since it is larger than the sum of its proper divisors (289827251969).

2012313221023 is an equidigital number, since it uses as much as digits as its factorization.

2012313221023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294241841.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2012313221023 its reverse (3201223132102), we get a palindrome (5213536353125).

The spelling of 2012313221023 in words is "two trillion, twelve billion, three hundred thirteen million, two hundred twenty-one thousand, twenty-three".