1042221031403 has 4 divisors (see below), whose sum is σ = 1047621140568. Its totient is φ = 1036820922240.

The previous prime is 1042221031393. The next prime is 1042221031409. The reversal of 1042221031403 is 3041301222401.

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

It is a cyclic number.

It is not a de Polignac number, because 1042221031403 - 2⁴ = 1042221031387 is a prime.

It is a super-2 number, since 2×1042221031403² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1042221031409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2700054293 + ... + 2700054678.

It is an arithmetic number, because the mean of its divisors is an integer number (261905285142).

Almost surely, 2^{1042221031403} is an apocalyptic number.

1042221031403 is a deficient number, since it is larger than the sum of its proper divisors (5400109165).

1042221031403 is an equidigital number, since it uses as much as digits as its factorization.

1042221031403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5400109164.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1042221031403 its reverse (3041301222401), we get a palindrome (4083522253804).

The spelling of 1042221031403 in words is "one trillion, forty-two billion, two hundred twenty-one million, thirty-one thousand, four hundred three".