1031012213223 has 4 divisors (see below), whose sum is σ = 1374682950968. Its totient is φ = 687341475480.

The previous prime is 1031012213201. The next prime is 1031012213269. The reversal of 1031012213223 is 3223122101301.

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

It is not a de Polignac number, because 1031012213223 - 2¹³ = 1031012205031 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 1031012213223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031022213223) 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, 171835368868 + ... + 171835368873.

It is an arithmetic number, because the mean of its divisors is an integer number (343670737742).

Almost surely, 2^{1031012213223} is an apocalyptic number.

1031012213223 is a deficient number, since it is larger than the sum of its proper divisors (343670737745).

1031012213223 is an equidigital number, since it uses as much as digits as its factorization.

1031012213223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343670737744.

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

Adding to 1031012213223 its reverse (3223122101301), we get a palindrome (4254134314524).

The spelling of 1031012213223 in words is "one trillion, thirty-one billion, twelve million, two hundred thirteen thousand, two hundred twenty-three".