1403221406542 has 4 divisors (see below), whose sum is σ = 2104832109816. Its totient is φ = 701610703270.

The previous prime is 1403221406539. The next prime is 1403221406569. The reversal of 1403221406542 is 2456041223041.

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

It is a junction number, because it is equal to n+sod(n) for n = 1403221406498 and 1403221406507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350805351634 + ... + 350805351637.

It is an arithmetic number, because the mean of its divisors is an integer number (526208027454).

Almost surely, 2^{1403221406542} is an apocalyptic number.

1403221406542 is a deficient number, since it is larger than the sum of its proper divisors (701610703274).

1403221406542 is an equidigital number, since it uses as much as digits as its factorization.

1403221406542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701610703273.

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 1403221406542 its reverse (2456041223041), we get a palindrome (3859262629583).

The spelling of 1403221406542 in words is "one trillion, four hundred three billion, two hundred twenty-one million, four hundred six thousand, five hundred forty-two".