1012213131223 has 8 divisors (see below), whose sum is σ = 1183717682048. Its totient is φ = 847434249144.

The previous prime is 1012213131157. The next prime is 1012213131263. The reversal of 1012213131223 is 3221313122101.

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

It is not a de Polignac number, because 1012213131223 - 2²⁹ = 1011676260311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012213131194 and 1012213131203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012213131263) 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, 1681416861 + ... + 1681417462.

It is an arithmetic number, because the mean of its divisors is an integer number (147964710256).

Almost surely, 2^{1012213131223} is an apocalyptic number.

1012213131223 is a deficient number, since it is larger than the sum of its proper divisors (171504550825).

1012213131223 is an equidigital number, since it uses as much as digits as its factorization.

1012213131223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3362834373.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1012213131223 its reverse (3221313122101), we get a palindrome (4233526253324).

The spelling of 1012213131223 in words is "one trillion, twelve billion, two hundred thirteen million, one hundred thirty-one thousand, two hundred twenty-three".