1042042323402 has 112 divisors (see below), whose sum is σ = 2463276087360. Its totient is φ = 329818775616.

The previous prime is 1042042323401. The next prime is 1042042323449. The reversal of 1042042323402 is 2043232402401.

1042042323402 is a `hidden beast` number, since 1 + 0 + 4 + 2 + 0 + 423 + 234 + 0 + 2 = 666.

It is a super-2 number, since 2×1042042323402² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1042042323401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 4480749 + ... + 4707567.

Almost surely, 2^{1042042323402} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1042042323402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1231638043680).

1042042323402 is an abundant number, since it is smaller than the sum of its proper divisors (1421233763958).

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

1042042323402 is a wasteful number, since it uses less digits than its factorization.

1042042323402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226999 (or 226984 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 1042042323402 its reverse (2043232402401), we get a palindrome (3085274725803).

The spelling of 1042042323402 in words is "one trillion, forty-two billion, forty-two million, three hundred twenty-three thousand, four hundred two".