1123020311322 has 64 divisors (see below), whose sum is σ = 2839070110464. Its totient is φ = 288176279040.

The previous prime is 1123020311299. The next prime is 1123020311327. The reversal of 1123020311322 is 2231130203211.

It is a super-2 number, since 2×1123020311322² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1123020311327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27774579 + ... + 27814982.

It is an arithmetic number, because the mean of its divisors is an integer number (44360470476).

Almost surely, 2^{1123020311322} is an apocalyptic number.

1123020311322 is an abundant number, since it is smaller than the sum of its proper divisors (1716049799142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123020311322 is a wasteful number, since it uses less digits than its factorization.

1123020311322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55589623.

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

Adding to 1123020311322 its reverse (2231130203211), we get a palindrome (3354150514533).

The spelling of 1123020311322 in words is "one trillion, one hundred twenty-three billion, twenty million, three hundred eleven thousand, three hundred twenty-two".