1403553121330 has 16 divisors (see below), whose sum is σ = 2544571128960. Its totient is φ = 557382246192.

The previous prime is 1403553121307. The next prime is 1403553121367. The reversal of 1403553121330 is 331213553041.

It is a happy number.

It is a super-2 number, since 2×1403553121330² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1403553121292 and 1403553121301.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504873834 + ... + 504876613.

It is an arithmetic number, because the mean of its divisors is an integer number (159035695560).

Almost surely, 2^{1403553121330} is an apocalyptic number.

1403553121330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1403553121330 is a deficient number, since it is larger than the sum of its proper divisors (1141018007630).

1403553121330 is a wasteful number, since it uses less digits than its factorization.

1403553121330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009750593.

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 1403553121330 its reverse (331213553041), we get a palindrome (1734766674371).

The spelling of 1403553121330 in words is "one trillion, four hundred three billion, five hundred fifty-three million, one hundred twenty-one thousand, three hundred thirty".