1603053115420 has 96 divisors (see below), whose sum is σ = 3629783678976. Its totient is φ = 592952659200.

The previous prime is 1603053115361. The next prime is 1603053115421. The reversal of 1603053115420 is 245113503061.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1603053115421) 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, 14074942 + ... + 14188378.

It is an arithmetic number, because the mean of its divisors is an integer number (37810246656).

Almost surely, 2^{1603053115420} is an apocalyptic number.

1603053115420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1603053115420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1814891839488).

1603053115420 is an abundant number, since it is smaller than the sum of its proper divisors (2026730563556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1603053115420 is a wasteful number, since it uses less digits than its factorization.

1603053115420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114491 (or 114489 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 1603053115420 its reverse (245113503061), we get a palindrome (1848166618481).

The spelling of 1603053115420 in words is "one trillion, six hundred three billion, fifty-three million, one hundred fifteen thousand, four hundred twenty".