1042401304402 has 4 divisors (see below), whose sum is σ = 1563601956606. Its totient is φ = 521200652200.

The previous prime is 1042401304397. The next prime is 1042401304411. The reversal of 1042401304402 is 2044031042401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 532346803641 + 510054500761 = 729621^2 + 714181^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260600326099 + ... + 260600326102.

Almost surely, 2^{1042401304402} is an apocalyptic number.

1042401304402 is a deficient number, since it is larger than the sum of its proper divisors (521200652204).

1042401304402 is an equidigital number, since it uses as much as digits as its factorization.

1042401304402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521200652203.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 1042401304402 its reverse (2044031042401), we get a palindrome (3086432346803).

The spelling of 1042401304402 in words is "one trillion, forty-two billion, four hundred one million, three hundred four thousand, four hundred two".