1054403505021 has 32 divisors (see below), whose sum is σ = 1492784455680. Its totient is φ = 661046673600.

The previous prime is 1054403505017. The next prime is 1054403505031. The reversal of 1054403505021 is 1205053044501.

It is not a de Polignac number, because 1054403505021 - 2² = 1054403505017 is a prime.

It is a super-2 number, since 2×1054403505021² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1054403505021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1054403505011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 648801 + ... + 1590518.

It is an arithmetic number, because the mean of its divisors is an integer number (46649514240).

Almost surely, 2^{1054403505021} is an apocalyptic number.

It is an amenable number.

1054403505021 is a deficient number, since it is larger than the sum of its proper divisors (438380950659).

1054403505021 is a wasteful number, since it uses less digits than its factorization.

1054403505021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2239497.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 1054403505021 its reverse (1205053044501), we get a palindrome (2259456549522).

The spelling of 1054403505021 in words is "one trillion, fifty-four billion, four hundred three million, five hundred five thousand, twenty-one".