1021311034223 has 4 divisors (see below), whose sum is σ = 1054256551488. Its totient is φ = 988365516960.

The previous prime is 1021311034207. The next prime is 1021311034229. The reversal of 1021311034223 is 3224301131201.

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

It is a cyclic number.

It is not a de Polignac number, because 1021311034223 - 2⁴ = 1021311034207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021311034229) 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, 16472758586 + ... + 16472758647.

It is an arithmetic number, because the mean of its divisors is an integer number (263564137872).

Almost surely, 2^{1021311034223} is an apocalyptic number.

1021311034223 is a deficient number, since it is larger than the sum of its proper divisors (32945517265).

1021311034223 is an equidigital number, since it uses as much as digits as its factorization.

1021311034223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32945517264.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1021311034223 its reverse (3224301131201), we get a palindrome (4245612165424).

The spelling of 1021311034223 in words is "one trillion, twenty-one billion, three hundred eleven million, thirty-four thousand, two hundred twenty-three".