1123010021321 has 4 divisors (see below), whose sum is σ = 1123218493392. Its totient is φ = 1122801549252.

The previous prime is 1123010021317. The next prime is 1123010021333. The reversal of 1123010021321 is 1231200103211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1123010021321 - 2² = 1123010021317 is a prime.

It is a super-2 number, since 2×1123010021321² (a number of 25 digits) contains 22 as substring.

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 1123010021321.

It is not an unprimeable number, because it can be changed into a prime (1123010021621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104227955 + ... + 104238728.

It is an arithmetic number, because the mean of its divisors is an integer number (280804623348).

Almost surely, 2^{1123010021321} is an apocalyptic number.

It is an amenable number.

1123010021321 is a deficient number, since it is larger than the sum of its proper divisors (208472071).

1123010021321 is an equidigital number, since it uses as much as digits as its factorization.

1123010021321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208472070.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1123010021321 its reverse (1231200103211), we get a palindrome (2354210124532).

The spelling of 1123010021321 in words is "one trillion, one hundred twenty-three billion, ten million, twenty-one thousand, three hundred twenty-one".