1123821384546 has 64 divisors (see below), whose sum is σ = 2622347873280. Its totient is φ = 314436548160.

The previous prime is 1123821384541. The next prime is 1123821384557. The reversal of 1123821384546 is 6454831283211.

It is a super-2 number, since 2×1123821384546² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1123821384495 and 1123821384504.

It is not an unprimeable number, because it can be changed into a prime (1123821384541) 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, 384616 + ... + 1547763.

It is an arithmetic number, because the mean of its divisors is an integer number (40974185520).

Almost surely, 2^{1123821384546} is an apocalyptic number.

1123821384546 is an abundant number, since it is smaller than the sum of its proper divisors (1498526488734).

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

1123821384546 is a wasteful number, since it uses less digits than its factorization.

1123821384546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932679.

The product of its digits is 1105920, while the sum is 48.

The spelling of 1123821384546 in words is "one trillion, one hundred twenty-three billion, eight hundred twenty-one million, three hundred eighty-four thousand, five hundred forty-six".