1123405144252 has 24 divisors (see below), whose sum is σ = 2106879689376. Its totient is φ = 522759619008.

The previous prime is 1123405144249. The next prime is 1123405144259. The reversal of 1123405144252 is 2524415043211.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123405144259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165009103 + ... + 165015910.

It is an arithmetic number, because the mean of its divisors is an integer number (87786653724).

Almost surely, 2^{1123405144252} is an apocalyptic number.

It is an amenable number.

1123405144252 is a deficient number, since it is larger than the sum of its proper divisors (983474545124).

1123405144252 is a wasteful number, since it uses less digits than its factorization.

1123405144252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330025077 (or 330025075 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The spelling of 1123405144252 in words is "one trillion, one hundred twenty-three billion, four hundred five million, one hundred forty-four thousand, two hundred fifty-two".