15103435143020 has 96 divisors (see below), whose sum is σ = 37531765514880. Its totient is φ = 4995280281600.

The previous prime is 15103435143019. The next prime is 15103435143059. The reversal of 15103435143020 is 2034153430151.

It is a super-2 number, since 2×15103435143020² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2869820 + ... + 6200220.

It is an arithmetic number, because the mean of its divisors is an integer number (390955890780).

Almost surely, 2^{15103435143020} is an apocalyptic number.

15103435143020 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 15103435143020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18765882757440).

15103435143020 is an abundant number, since it is smaller than the sum of its proper divisors (22428330371860).

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

15103435143020 is a wasteful number, since it uses less digits than its factorization.

15103435143020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3331563 (or 3331561 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 15103435143020 its reverse (2034153430151), we get a palindrome (17137588573171).

The spelling of 15103435143020 in words is "fifteen trillion, one hundred three billion, four hundred thirty-five million, one hundred forty-three thousand, twenty".